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1.	Bengtsson, Anna, 1973-, et al. (författare) The beneficial effect over 3 years by pictorial information to patients and their physician about subclinical atherosclerosis and cardiovascular risk : results from the VIPVIZA randomized clinical trial 2021 Ingår i: American Journal of Preventive Cardiology. - : Elsevier. - 2666-6677. ; 7 Tidskriftsartikel (refereegranskat)abstract Objective: Non-adherence to guidelines and preventive measures is a major challenge, particularly so to ob- tain long-term adherence to lifestyle changes and recommended medication. The objective was to investigate if pictorial information regarding subclinical carotid atherosclerosis provided to individuals and physicians gave sustained effects on cardiovascular risk beyond the previously reported effect after 1 year and up to 3 years. Methods: A Prospective Randomized Open Blinded End-point (PROBE) trial. Within a CVD prevention program in Västerbotten County, Sweden, 3532 healthy individuals aged 40, 50 or 60 years were enrolled and 1:1 ran- domized to intervention ( n = 1749; pictorial information with additional prevention materials to participants and physicians) or control group ( n = 1783; no pictorial information to participants and physicians). Preventive measures were managed within primary care. Participants were investigated at baseline during 2013–2016 and at follow-up after 1 and 3 years. Results: A beneficial effect on cardiovascular risk was observed at 3-year follow-up; Framingham Risk Score (FRS) was 13.38 for the intervention group and 14.08 for the control group ( p = 0.047) and SCORE was 1.69 vs. 1.82 ( p = 0.022). The effect observed at 1-year was sustained over 3 years after adjustment for sex and education and more pronounced among participants with a severe atherosclerotic picture at baseline.Conclusions: This study provides evidence of sustained beneficial effects on the adherence to prevention guidelines over 3 years of pictorial information about subclinical carotid atherosclerosis, resulting in lower cardiovascular risk regardless of sex and educational level. Direct visualization of the underlying still subclinical atherosclerotic disease, rather than just indirect information about risk factors and statistical risk of future myocardial infarction, stroke and death, is one way to tackle the problem of non-adherence to prevention of cardiovascular diseases.
2.	Christersson, Christina, et al. (författare) Screening for Biomarkers Associated with Left Ventricular Function During Follow-up After Acute Coronary Syndrome 2023 Ingår i: Journal of Cardiovascular Translational Research. - : Springer Nature. - 1937-5387 .- 1937-5395. ; 16:1, s. 244-254 Tidskriftsartikel (refereegranskat)abstract A proportion of patients with the acute coronary syndrome (ACS) will suffer progressive remodeling of the left ventricular (LV). The aim was to screen for important biomarkers from a large-scale protein profiling in 420 ACS patients and define biomarkers associated with reduced LV function early and 1 year after the ACS. Transferrin receptor protein 1 and NT-proBNP were associated with LV function early and after 1 year, whereas osteopontin and soluble ST2 were associated with LV function in the early phase and, tissue-type plasminogen activator after 1 year. Fatty-acid-binding protein and galectin 3 were related to worse GLS but not to LVEF 1 year after the ACS. Proteins involved in remodeling and iron transport in cardiomyocytes were related to worse LV function after ACS. Biomarkers for energy metabolism and fibrosis were exclusively related to worse LV function by GLS. Studies on the functions of these proteins might add knowledge to the biological processes involved in heart failure in long term after ACS.
3.	Jönelid, Birgitta, 1965- (författare) Importance of peripheral arterial disease as a risk marker in patients with myocardial infarction 2019 Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract The purpose of this thesis was to describe the true prevalence of widespread arterial disease in a cohort with patients with a recent myocardial infarction (MI) to find valuable clinical methods to detect these patients. Our aim was also to investigate biomarker relationships with peripheral artery disease (PAD) and the importance of PAD in patients’ long-term outcomes.We studied patients with a recent MI in a prospective observational study, the REBUS ((Relevance of Biomarkers for Future Risk of Thromboembolic Events in Unselected Post-myocardial Infarction Patients) trial. A total of 421 patients were included in the study, 390 of whom had their ankle-brachial index (ABI) measured and a mean-time follow up of 5.5 years. Atherosclerotic changes were assessed in three arterial beds by coronary angiography, measuring the ABI and carotid ultrasound. Ninety-two biochemical biomarkers were assessed at baseline by a proximity extension assay (PEA) chip. 263 out of 421 filled in a self-administered Walking Impairment Questionnaire (WIQ). Polyvascular (PvD) disease was defined as pathological findings in all three arterial beds.We found that PAD and PvD are underdiagnosed in patients who suffered a recent MI. We also found the ABI to be a strong and useful method to identify patients with PAD as well as patients with more widespread arterial disease, such as PvD (paper I).The results of the scoring system, the WIQ, showed it is useful for finding patients with PAD and PvD, even when completed soon after an acute MI event (paper II).We also found that biochemical biomarkers associated with the inflammatory pathway – tumour necrosis factor receptor 1 (TNFR-1), tumor necrosis factor receptor 2 (TNFR-2) and growth differentiation factor 15 (GDF-15) – were able to predict pathological ABI, i.e. PAD, in these MI patients. These results could also be validated in another observational study and cohort of MI patients, the VaMIS cohort (paper III). Pathological ABI was also found to be a strong predictor for cardiovascular events of all-cause mortality, new ACS, and a composite endpoint of all-cause mortality, new ACS, new stroke/TIA or new PAD event. When evaluating the three inflammatory biomarkers as a surrogate marker for ABI, they showed a similar association with all-cause death and the composite endpoint (paper IV).
4.	Jönelid, Birgitta, et al. (författare) Low Walking Impairment Questionnaire score after a recent myocardial infarction identifies patients with polyvascular disease 2019 Ingår i: JRSM Cardiovascular Disease. - : SAGE Publications. - 2048-0040. ; 8, s. 1-9 Tidskriftsartikel (refereegranskat)abstract Objectives: To evaluate whether the Walking Impairment Questionnaire score could identify patients with polyvascular disease in a population with recent myocardial infarction and their association with cardiovascular events during two-year follow-up.Design: A prospective observational study.Setting: Patients admitted to the acute coronary care unit, the Department of Cardiology, Uppsala University Hospital.Participants: Patients admitted with acute Non-STEMI- or STEMI-elevation myocardial infarction.Main outcome measures: The Walking Impairment Questionnaire, developed as a self-administered instrument to assess walking distance, speed, and stair climbing in patients with peripheral artery disease, predicts future cardiovascular events and mortality. Two hundred and sixty-three patients with recent myocardial infarction answered Walking Impairment Questionnaire. Polyvascular disease was defined as abnormal findings in the coronary- and carotid arteries and an abnormal ankle-brachial index. The calculated score for each of all three categories were divided into quartiles with the lowest score in first quartile.Results: The lowest (worst) quartile in all three Walking Impairment Questionnaire categories was associated with polyvascular disease, fully adjusted; distance, odds ratio (OR) 5.4 (95% confidence interval (CI) 1.8-16.1); speed, OR 7.4 (95% CI 1.5-36.5); stair climbing, OR 8.4 (95% CI 1.0-73.6). In stair climbing score, patients with the lowest (worst) score had a higher risk for the composite cardiovascular endpoint compared to the highest (best) score; hazard ratio 5.3 (95% CI 1.5-19.0). The adherence to medical treatment was high (between 81.7% and 99.2%).Conclusions: The Walking Impairment Questionnaire is a simple tool to identify myocardial infarction patients with more widespread atherosclerotic disease and although well treated medically, stair climbing predicts cardiovascular events.
5.	Katus, Hugo, et al. (författare) Early diagnosis of acute coronary syndrome 2017 Ingår i: European Heart Journal. - : Oxford University Press (OUP). - 0195-668X .- 1522-9645. ; 38:41, s. 3049-3055 Forskningsöversikt (refereegranskat)abstract The diagnostic evaluation of acute chest pain has been augmented in recent years by advances in the sensitivity and precision of cardiac troponin assays, new biomarkers, improvements in imaging modalities, and release of new clinical decision algorithms. This progress has enabled physicians to diagnose or rule-out acute myocardial infarction earlier after the initial patient presentation, usually in emergency department settings, which may facilitate prompt initiation of evidence-based treatments, investigation of alternative diagnoses for chest pain, or discharge, and permit better utilization of healthcare resources. A non-trivial proportion of patients fall in an indeterminate category according to rule-out algorithms, and minimal evidence-based guidance exists for the optimal evaluation, monitoring, and treatment of these patients. The Cardiovascular Round Table of the ESC proposes approaches for the optimal application of early strategies in clinical practice to improve patient care following the review of recent advances in the early diagnosis of acute coronary syndrome. The following specific 'indeterminate' patient categories were considered: (i) patients with symptoms and high-sensitivity cardiac troponin <99th percentile; (ii) patients with symptoms and high-sensitivity troponin <99th percentile but above the limit of detection; (iii) patients with symptoms and high-sensitivity troponin >99th percentile but without dynamic change; and (iv) patients with symptoms and high-sensitivity troponin >99th percentile and dynamic change but without coronary plaque rupture/erosion/dissection. Definitive evidence is currently lacking to manage these patients whose early diagnosis is 'indeterminate' and these areas of uncertainty should be assigned a high priority for research.
6.	Näslund, Ulf, et al. (författare) Visualization of asymptomatic atherosclerotic disease for optimum cardiovascular prevention (VIPVIZA) : a pragmatic, open-label, randomised controlled trial 2019 Ingår i: The Lancet. - : Elsevier. - 0140-6736 .- 1474-547X. ; 393:10167, s. 133-142 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: Primary prevention of cardiovascular disease often fails because of poor adherence among practitioners and individuals to prevention guidelines. We aimed to investigate whether ultrasound-based pictorial information about subclinical carotid atherosclerosis, targeting both primary care physicians and individuals, improves prevention.METHODS: Visualization of asymptomatic atherosclerotic disease for optimum cardiovascular prevention (VIPVIZA) is a pragmatic, open-label, randomised controlled trial that was integrated within the Västerbotten Intervention Programme, an ongoing population-based cardiovascular disease prevention programme in northern Sweden. Individuals aged 40, 50, or 60 years with one or more conventional risk factors were eligible to participate. Participants underwent clinical examination, blood sampling, and ultrasound assessment of carotid intima media wall thickness and plaque formation. Participants were randomly assigned 1:1 with a computer-generated randomisation list to an intervention group (pictorial representation of carotid ultrasound plus a nurse phone call to confirm understanding) or a control group (not informed). The primary outcomes, Framingham risk score (FRS) and European systematic coronary risk evaluation (SCORE), were assessed after 1 year among participants who were followed up. This study is registered with ClinicalTrials.gov, number NCT01849575.FINDINGS: 3532 individuals were enrolled between April 29, 2013, and June 7, 2016, of which 1783 were randomly assigned to the control group and 1749 were assigned to the intervention group. 3175 participants completed the 1-year follow-up. At the 1-year follow-up, FRS and SCORE differed significantly between groups (FRS 1·07 [95% CI 0·11 to 2·03, p=0·0017] and SCORE 0·16 [0·02 to 0·30, p=0·0010]). FRS decreased from baseline to the 1-year follow-up in the intervention group and increased in the control group (-0·58 [95% CI -0·86 to -0·30] vs 0·35 [0·08 to 0·63]). SCORE increased in both groups (0·13 [95% CI 0·09 to 0·18] vs 0·27 [0·23 to 0·30]).INTERPRETATION: This study provides evidence of the contributory role of pictorial presentation of silent atherosclerosis for prevention of cardiovascular disease. It supports further development of methods to reduce the major problem of low adherence to medication and lifestyle modification.
7.	Alabas, Oras A., et al. (författare) Sex Differences in Treatments, Relative Survival, and Excess Mortality Following Acute Myocardial Infarction : National Cohort Study Using the SWEDEHEART Registry 2017 Ingår i: Journal of the American Heart Association. - : WILEY. - 2047-9980. ; 6:12 Tidskriftsartikel (refereegranskat)abstract Background - This study assessed sex differences in treatments, all-cause mortality, relative survival, and excess mortality following acute myocardial infarction.Methods and Results - A population-based cohort of all hospitals providing acute myocardial infarction care in Sweden (SWEDEHEART [Swedish Web System for Enhancement and Development of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies]) from 2003 to 2013 was included in the analysis. Excess mortality rate ratios (EMRRs), adjusted for clinical characteristics and guideline-indicated treatments after matching by age, sex, and year to background mortality data, were estimated. Although there were no sex differences in all-cause mortality adjusted for age, year of hospitalization, and comorbidities for ST-segment-elevation myocardial infarction (STEMI) and non-STEMI at 1 year (mortality rate ratio: 1.01 [95% confidence interval (CI), 0.96-1.05] and 0.97 [95% CI, 0.95-.99], respectively) and 5 years (mortality rate ratio: 1.03 [95% CI, 0.99-1.07] and 0.97 [95% CI, 0.95-.99], respectively), excess mortality was higher among women compared with men for STEMI and non-STEMI at 1 year (EMRR: 1.89 [95% CI, 1.66-2.16] and 1.20 [95% CI, 1.16-1.24], respectively) and 5 years (EMRR: 1.60 [95% CI, 1.48-1.72] and 1.26 [95% CI, 1.21-1.32], respectively). After further adjustment for the use of guideline-indicated treatments, excess mortality among women with non-STEMI was not significant at 1 year (EMRR: 1.01 [95% CI, 0.97-1.04]) and slightly higher at 5 years (EMRR: 1.07 [95% CI, 1.02-1.12]). For STEMI, adjustment for treatments attenuated the excess mortality for women at 1 year (EMRR: 1.43 [95% CI, 1.26-1.62]) and 5 years (EMRR: 1.31 [95% CI, 1.19-1.43]).Conclusions - Women with acute myocardial infarction did not have statistically different all-cause mortality, but had higher excess mortality compared with men that was attenuated after adjustment for the use of guideline-indicated treatments. This suggests that improved adherence to guideline recommendations for the treatment of acute myocardial infarction may reduce premature cardiovascular death among women.
8.	Alabas, Oras A., et al. (författare) Statistics on mortality following acute myocardial infarction in 842 897 Europeans 2020 Ingår i: Cardiovascular Research. - : OXFORD UNIV PRESS. - 0008-6363 .- 1755-3245. ; 116:1, s. 149-157 Tidskriftsartikel (refereegranskat)abstract Aims: To compare ST-segment elevation myocardial infarction (STEMI) and non-STEMI (NSTEMI) mortality between Sweden and the UK, adjusting for background population rates of expected death, case mix, and treatments.Methods and results: National data were collected from hospitals in Sweden [n = 73 hospitals, 180 368 patients, Swedish Web-system for Enhancement and Development of Evidence-based care in Heart disease Evaluated According to Recommended Therapies (SWEDEHEART)] and the UK [n = 247, 662 529 patients, Myocardial Ischaemia National Audit Project (MINAP)] between 2003 and 2013. There were lower rates of revascularization [STEMI (43.8% vs. 74.9%); NSTEMI (27.5% vs. 43.6%)] and pharmacotherapies at time of hospital discharge including [aspirin (82.9% vs. 90.2%) and (79.9% vs. 88.0%), beta-blockers (73.4% vs. 86.4%) and (65.3% vs. 85.1%)] in the UK compared with Sweden, respectively. Standardized net probability of death (NPD) between admission and 1 month was higher in the UK for STEMI [8.0 (95% confidence interval 7.4-8.5) vs. 6.7 (6.5-6.9)] and NSTEMI [6.8 (6.4-7.2) vs. 4.9 (4.7-5.0)]. Between 6 months and 1 year and more than 1 year, NPD remained higher in the UK for NSTEMI [2.9 (2.5-3.3) vs. 2.3 (2.2-2.5)] and [21.4 (20.0-22.8) vs. 18.3 (17.6-19.0)], but was similar for STEMI [0.7 (0.4-1.0) vs. 0.9 (0.7-1.0)] and [8.4 (6.7-10.1) vs. 8.3 (7.5-9.1)].Conclusion: Short-term mortality following STEMI and NSTEMI was higher in the UK compared with Sweden. Mid- and longer-term mortality remained higher in the UK for NSTEMI but was similar for STEMI. Differences in mortality may be due to differential use of guideline-indicated treatments.
9.	Alfredsson, Joakim, 1962-, et al. (författare) Randomized comparison of early supplemental oxygen versus ambient air in patients with confirmed myocardial infarction : Sex-related outcomes from DETO2X-AMI 2021 Ingår i: American Heart Journal. - : Mosby Inc.. - 0002-8703 .- 1097-6744. ; 237, s. 13-24 Tidskriftsartikel (refereegranskat)abstract Background: The purpose of this study is to investigate the impact of oxygen therapy on cardiovascular outcomes in relation to sex in patients with confirmed myocardial infarction (MI).Methods: The DETermination of the role of Oxygen in suspected Acute Myocardial Infarction trial randomized 6,629 patients to oxygen at 6 L/min for 6-12 hours or ambient air. In the present subgroup analysis including 5,010 patients (1,388 women and 3,622 men) with confirmed MI, we report the effect of supplemental oxygen on the composite of all-cause death, rehospitalization with MI, or heart failure at long-term follow-up, stratified according to sex.Results: Event rate for the composite endpoint was 18.1% in women allocated to oxygen, compared to 21.4% in women allocated to ambient air (hazard ratio [HR] 0.83, 95% confidence interval [CI] 0.65-1.05). In men, the incidence was 13.6% in patients allocated to oxygen compared to 13.3% in patients allocated to ambient air (HR 1.03, 95% CI 0.86-1.23). No significant interaction in relation to sex was found (P=.16). Irrespective of allocated treatment, the composite endpoint occurred more often in women compared to men (19.7 vs 13.4%, HR 1.51; 95% CI, 1.30-1.75). After adjustment for age alone, there was no difference between the sexes (HR 1.06, 95% CI 0.91-1.24), which remained consistent after multivariate adjustment.Conclusion: Oxygen therapy in normoxemic MI patients did not significantly affect all-cause mortality or rehospitalization for MI or heart failure in women or men. The observed worse outcome in women was explained by differences in baseline characteristics, especially age
10.	Alshakarchi, Jinan, et al. (författare) Troponinstegring och akut hjärtsvikt vid epileptiskt anfall 2010 Ingår i: Läkartidningen. - 0023-7205 .- 1652-7518. ; 107:18, s. 1235-1237 Tidskriftsartikel (refereegranskat)
11.	Ambavane, Apoorva, et al. (författare) Economic evaluation of the one-hour rule-out and rule-in algorithm for acute myocardial infarction using the high-sensitivity cardiac troponin T assay in the emergency department 2017 Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 12:11 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: The 1-hour (h) algorithm triages patients presenting with suspected acute myocardial infarction (AMI) to the emergency department (ED) towards "rule-out," "rule-in," or "observation," depending on baseline and 1-h levels of high-sensitivity cardiac troponin (hs-cTn). The economic consequences of applying the accelerated 1-h algorithm are unknown.METHODS AND FINDINGS: We performed a post-hoc economic analysis in a large, diagnostic, multicenter study of hs-cTnT using central adjudication of the final diagnosis by two independent cardiologists. Length of stay (LoS), resource utilization (RU), and predicted diagnostic accuracy of the 1-h algorithm compared to standard of care (SoC) in the ED were estimated. The ED LoS, RU, and accuracy of the 1-h algorithm was compared to that achieved by the SoC at ED discharge. Expert opinion was sought to characterize clinical implementation of the 1-h algorithm, which required blood draws at ED presentation and 1h, after which "rule-in" patients were transferred for coronary angiography, "rule-out" patients underwent outpatient stress testing, and "observation" patients received SoC. Unit costs were for the United Kingdom, Switzerland, and Germany. The sensitivity and specificity for the 1-h algorithm were 87% and 96%, respectively, compared to 69% and 98% for SoC. The mean ED LoS for the 1-h algorithm was 4.3h-it was 6.5h for SoC, which is a reduction of 33%. The 1-h algorithm was associated with reductions in RU, driven largely by the shorter LoS in the ED for patients with a diagnosis other than AMI. The estimated total costs per patient were £2,480 for the 1-h algorithm compared to £4,561 for SoC, a reduction of up to 46%.CONCLUSIONS: The analysis shows that the use of 1-h algorithm is associated with reduction in overall AMI diagnostic costs, provided it is carefully implemented in clinical practice. These results need to be prospectively validated in the future.
12.	Andell, Pontus, et al. (författare) Oxygen therapy in suspected acute myocardial infarction and concurrent normoxemic chronic obstructive pulmonary disease : a prespecified subgroup analysis from the DETO2X-AMI trial. 2020 Ingår i: European Heart Journal. - : Oxford University Press (OUP). - 2048-8726 .- 2048-8734. ; 9:8, s. 984-992 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: The DETermination of the role of Oxygen in suspected Acute Myocardial Infarction (DETO2X-AMI) trial did not find any benefit of oxygen therapy compared to ambient air in normoxemic patients with suspected acute myocardial infarction. Patients with chronic obstructive pulmonary disease may both benefit and be harmed by supplemental oxygen. Thus we evaluated the effect of routine oxygen therapy compared to ambient air in normoxemic chronic obstructive pulmonary disease patients with suspected acute myocardial infarction.METHODS AND RESULTS: =0.77]); there were no significant treatment-by-chronic obstructive pulmonary disease interactions.CONCLUSIONS: Although chronic obstructive pulmonary disease patients had twice the mortality rate compared to non-chronic obstructive pulmonary disease patients, this prespecified subgroup analysis from the DETO2X-AMI trial on oxygen therapy versus ambient air in normoxemic chronic obstructive pulmonary disease patients with suspected acute myocardial infarction revealed no evidence for benefit of routine oxygen therapy consistent with the main trial's findings.CLINICAL TRIALS REGISTRATION: NCT02290080.
13.	Aurora, Lindsey, et al. (författare) Prognostic Utility of a Modified HEART Score When Different Troponin Cut Points Are Used. 2021 Ingår i: Critical Pathways in Cardiology. - : Wolters Kluwer. - 1535-282X .- 1535-2811. ; 20:3, s. 134-139 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: Although the recommended cut point for cardiac troponin (cTn) is the 99th percentile, many institutions use cut points that are multiples higher than the 99th percentile for diagnosing acute myocardial infarction (AMI). Prior studies have shown that patients with a HEART score (HS) ≤ 3 and normal serial cTn values (modified HS) are at low risk for adverse events. This study aimed to evaluate the prognostic utility of the HS when various cTn cut points are used.METHODS: This was a substudy of High Sensitivity Cardiac Troponin T assay for RAPID Rule-out of Acute Myocardial Infarction (TRAPID-AMI), a multicenter, international trial evaluating a rapid rule-out AMI study using high-sensitivity cardiac troponin T (hs-cTnT). One-thousand two-hundred eighty-two patients were evaluated for AMI from 12 centers in Europe, United States, and Australia from 2011 to 2013. Blood samples of hs-cTnT were collected at presentation and 2 hours, and each patient had a HS calculated. The US Food and Drug Administration approved 99th percentile for hs-cTnT (19 ng/L) was used.RESULTS: There were 213 (17%) AMIs. Within 30 days, there were an additional 2 AMIs and 8 deaths. The adverse event rates at 30 days (death/AMI) for a HS ≤ 3 and nonelevated hs-cTnT over 2 hours using increasing hs-cTnT cut points ranged from 0.6% to 5.1%.CONCLUSIONS: Using the recommended 99th percentile cut point for hs-cTnT, the combination of a HS ≤ 3 with nonelevated hs-cTnT values over 2 hours identifies a low-risk cohort who can be considered for discharge from the emergency department without further testing. The prognostic utility of this strategy is greatly lessened as higher hs-cTnT cut points are used.
14.	Avdic, Daniel, et al. (författare) Sex differences in sickness absence and the morbidity-mortality paradox : a longitudinal study using Swedish administrative registers 2019 Ingår i: BMJ Open. - : BMJ. - 2044-6055. ; 9:8 Tidskriftsartikel (refereegranskat)abstract Objective To analyse whether gender-specific health behaviour can be an explanation for why women outlive men, while having worse morbidity outcomes, known as the morbidity-mortality or gender paradox. Setting The working population in Sweden. Participants Thirty per cent random sample of Swedish women and men aged 40-59 with a hospital admission in the 1993-2004 period were included. The sample for analysis consists of 233274 individuals (115430 men and 117844 women) and in total 1 867013 observations on sickness absence. Intervention Hospital admission across 18 disease categories. Main outcome measures The main outcome measures were sickness absence (morbidity) and mortality. Longitudinal data at the individual level allow us to study how sickness absence changed after a hospital admission in men and women using a difference-in-differences regression analysis. Cox regression models are used to study differences in mortality after the admission. Results Women increased their sickness absence after a hospital admission by around five more days per year than men (95% CI 5.25 to 6.22). At the same time, men had higher mortality in the 18 diagnosis categories analysed. The pattern of more sickness absence in women was the same across 17 different diagnosis categories. For neoplasm, with a 57% higher risk of death for men (54.18%-59.89%), the results depended on the imputation method of sickness for those deceased. By using the premortality means of sickness absence, men had an additional 14.47 (-16.30- -12.64) days of absence, but with zero imputation women had an additional 1.6 days of absence (0.05-3.20). Analyses with or without covariates revealed a coherent picture. Conclusions The pattern of increased sickness absence (morbidity) and lower mortality in women provides evidence on the more proactive and preventive behaviour of women than of men, which could thus explain the morbidity-mortality paradox.
15.	Bahrmann, Philipp, et al. (författare) Quantification of Renal Function and Cardiovascular Mortality in Patients Admitted to the Emergency Department with Suspected Acute Coronary Syndromes : Results from the TRAPID-AMI Study 2017 Ingår i: Clinical Laboratory. - 1433-6510. ; 63:9, s. 1457-1466 Tidskriftsartikel (refereegranskat)abstract Background: Increases in the novel serum marker cystatin C are detectable much earlier in the course of chronic kidney disease (CKD) even when levels of serum creatinine are still in the normal range. A major factor causing a decrease in serum creatinine is increasing age. Patients with CKD are more likely to develop cardiovascular disease (CVD) than a healthy population and to suffer premature deaths from CVD related to CKD. The aim of this study was to investigate whether cystatin C, serum creatinine, and estimated glomerular filtration rate (eGFR) predict cardiovascular mortality in patients admitted to the emergency department (ED) with suspected acute coronary syndromes (ACS).Methods: In 1,282 patients (mean age 62 15 years, 477 women, 805 men) with suspected ACS, baseline cystatin C concentrations, serum creatinine, and estimated glomerular filtration rate (eGFR) were measured at the ED. Clinical assessment and serial high sensitivity cardiac troponin T (hs-cTnT) measurements were used for the diagnosis of ACS. Seventeen cardiovascular deaths were registered during a median follow-up of 365 days.Results: HRs from univariate Cox regression models for each of the potential biomarkers were 12.02 (95% CI 5.10 - 28.34) for cystatin C, 4.53 (1.75 - 11.70) for serum creatinine, and 0.97 (0.96 - 0.99) for eGFR. All three biomarkers showed a significant association with cardiovascular mortality in univariate analyses. The HRs from a model with all three potential biomarkers were 59.21 (95% CI 9.69 - 361.76) for cystatin C, 0.08 (0.01 - 0.58) for serum creatinine, and 0.98 (0.96 - 1.01) for eGFR. The risk association was significant for ln (cystatin C) and ln (serum creatinine).Conclusions: Results of this prospective study show that the quantification of renal function using cystatin C is useful for predicting cardiovascular mortality in patients with suspected ACS at the ED.
16.	Baron, Tomasz, et al. (författare) Background characteristics, treatment and long-term prognosis in patients with significant coronary artery stenosis classified as type 1 or type 2 myocardial infarction : Data from SWEDEHEART registry 2015 Ingår i: European Heart Journal. - 0195-668X .- 1522-9645. ; 36:Suppl. 1, s. 930-930 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
17.	Baron, Tomasz, et al. (författare) Biobank linked to SWEDEHEART quality registry-routine blood sample collection opens new opportunities for cardiovascular research 2019 Ingår i: Upsala Journal of Medical Sciences. - : Uppsala Medical Society. - 0300-9734 .- 2000-1967. ; 124:1, s. 12-15 Tidskriftsartikel (refereegranskat)abstract High-quality biobanking within routine health services, through the use of existing health-care practices and infrastructure, with respect to safety and integrity of patients in line with the Swedish Biobank Act, enables large-scale collection of biological material at reasonable costs. Complementing the extensive information on myocardial infarction patients from a national registry gives unique opportunities for research focusing on better understanding of cardiovascular disease occurrence and prognosis, developing of new diagnostic methods, and personalized treatments with greater efficacy and fewer side effects.
18.	Baron, Tomasz, et al. (författare) The Reply Refers ToTomoyuki Kawada Prognosis in Patients with Different Types of Myocardial Infarction and Presence of Obstructive Coronary Artery Disease 2017 Ingår i: American Journal of Medicine. - : Elsevier BV. - 0002-9343 .- 1555-7162. ; 130:9, s. 417-418 Tidskriftsartikel (refereegranskat)
19.	Batra, Gorav, et al. (författare) Atrial fibrillation in patients undergoing coronary artery surgery is associated with adverse outcome 2019 Ingår i: Upsala Journal of Medical Sciences. - : Taylor & Francis. - 0300-9734 .- 2000-1967. ; :1, s. 70-77 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: The aim was to determine the association between atrial fibrillation (AF) and outcome in patients undergoing coronary artery bypass grafting (CABG).METHODS: All patients undergoing CABG between January 2010 and June 2013 were identified in the Swedish Heart Surgery Registry. Outcomes studied were all-cause mortality, cardiovascular mortality, myocardial infarction, congestive heart failure, ischemic stroke, and recurrent AF. Patients with history of AF prior to surgery (preoperative AF) and patients without history of AF but with AF episodes post-surgery (postoperative AF) were compared to patients with no AF using adjusted Cox regression models.RESULTS: Among 9,107 identified patients, 8.1% (n = 737) had preoperative AF, and 25.1% (n = 2,290) had postoperative AF. Median follow-up was 2.2 years. Compared to no AF, preoperative AF was associated with higher risk of all-cause mortality, adjusted hazard ratio with 95% confidence interval (HR) 1.76 (1.33-2.33); cardiovascular mortality, HR 2.43 (1.68-3.50); and congestive heart failure, HR 2.21 (1.72-2.84). Postoperative AF was associated with risk of all-cause mortality, HR 1.27 (1.01-1.60); cardiovascular mortality, HR 1.52 (1.10-2.11); congestive heart failure, HR 1.47 (1.18-1.83); and recurrent AF, HR 4.38 (2.46-7.78). No significant association was observed between pre- or postoperative AF and risk for myocardial infarction and ischemic stroke.CONCLUSIONS: Approximately 1 in 3 patients undergoing CABG had pre- or postoperative AF. Patients with pre- or postoperative AF were at higher risk of all-cause mortality, cardiovascular mortality, and congestive heart failure, but not of myocardial infarction or ischemic stroke. Postoperative AF was associated with higher risk of recurrent AF.
20.	Beckmann, Kerri, et al. (författare) Spironolactone use is associated with lower prostate cancer risk : a population-wide case-control study 2020 Ingår i: Prostate Cancer and Prostatic Diseases. - : NATURE PUBLISHING GROUP. - 1365-7852 .- 1476-5608. ; 23:3, s. 527-533 Tidskriftsartikel (refereegranskat)abstract Background Spironolactone, a cheap effective diuretic used to manage hypertension and heart failure, also has anti-androgenic effects through its non-selective binding to steroid receptors, and hence may affect prostate cancer (PCa) risk. This study investigated the association between spironolactone use and PCa risk. For comparison, we also examined associations with thiazide diuretics which do not have anti-androgenic properties. Methods A matched case-control study was undertaken using population-wide data from the Prostate Cancer Data Base Sweden (PCBaSe). All PCa cases diagnosed from 2014 to 2016 were matched by birth year and county with PCa-free controls selected from the general population (1:5). Multivariable conditional logistic regression was used to examine associations between spironolactone use (dose and duration) and PCa risk, and similarly for thiazides. Results Three percent of the 31,591 cases and 4% of the 156,802 controls had been prescribed spironolactone. Multivariable analyses indicated reduced risk of PCa among those ever exposed to spironolactone (odds ratio [OR] 0.83; 95% confidence interval [CI]: 0.76-0.89), with a stronger association for current users (OR: 0.77, 95% CI: 0.69-0.86) than past users (OR: 0.88; 95% CI: 0.79-0.97) and decreasing risk with increasing dose (p-trend < 0.001). No association was observed for thiazide exposure and PCa risk. Biases due to differences in prescribing patterns or frequency of PSA testing may have influenced these findings. Conclusion PCa risk was reduced among men exposed to the diuretic spironolactone. Further investigation of spironolactone's potential chemopreventive effects is warranted.
21.	Bellman, Christina, et al. (författare) Achievement of secondary preventive goals after acute myocardial infarction : a comparison between participants and nonparticipants in a routine patient education program in Sweden 2009 Ingår i: Journal of Cardiovascular Nursing. - 0889-4655 .- 1550-5049. ; 24:5, s. 362-368 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: Modification of risk factors such as smoking, obesity, physical inactivity, and hypertension after acute myocardial infarction (AMI) has been shown to reduce mortality and morbidity. Therefore, most hospitals in Sweden invite patients with myocardial infarction to an educational program, the "Heart School," where they can learn about lifestyle changes. Whether this kind of education program applied in routine care increases the proportion of patients achieving secondary prevention goals is unknown. METHODS: A cohort of consecutive patients treated for AMI and included in a quality registry was followed up during 1 year. The main aim was to study the effects of taking part in the Heart School on smoking habits, blood pressure and low-density lipoprotein cholesterol levels, exercise habits, cardiac symptoms, quality of life, and readmissions to hospital. Patients included in the national quality register of secondary prevention after AMI who had participated in the educational program were compared with those who had not participated in the program. Achievements of secondary prevention goals 1 year after the myocardial infarction were evaluated. The study included 2,822 patients. RESULTS: The result showed that patients who participated in the Heart School stopped smoking more often than those who did not participate (adjusted odds ratio, 2.01; 95% confidence interval, 1.46-2.78). The Heart School had no effects on the other variables that were examined. CONCLUSION: The interventions currently used in the Swedish Heart School seem to be insufficient to obtain sustainable lifestyle changes, except for smoking cessation.
22.	Bima, Paolo, et al. (författare) Chest Pain in Cancer Patients Prevalence of Myocardial Infarction and Performance of High-Sensitivity Cardiac Troponins 2023 Ingår i: JACC: CARDIOONCOLOGY. - : Elsevier. - 2666-0873. ; 5:5, s. 591-609 Tidskriftsartikel (refereegranskat)abstract BACKGROUND Little is known about patients with cancer presenting with acute chest discomfort to the emergency department (ED).OBJECTIVES The aim of this study was to assess the prevalence of acute myocardial infarction (AMI), outcomes, and the diagnostic utility of recommended diagnostic tools in this population.METHODS Patients presenting with chest pain to the ED were prospectively enrolled in an international multicenter diagnostic study with central adjudication. Cancer status was assessed prospectively and additional cancer details retrospectively. Findings were externally validated in an independent multicenter cohort.RESULTS Among 8,267 patients, 711 (8.6%) had cancer. Patients with cancer had a higher burden of cardiovascular risk factors and pre-existing cardiac disease. Total length of stay in the ED (5.2 hours vs 4.3 hours) and hospitalization rate (49.8% vs 34.3%) were both increased in patients with cancer (P < 0.001 for both). Among 8,093 patients eligible for the AMI analyses, those with cancer more often had final diagnoses of AMI (184 of 686 with cancer [26.8%] vs 1,561 of 7,407 without cancer [21.1%]; P < 0.001). In patients with cancer, high-sensitivity cardiac troponin T (hs-cTnT) but not high sensitivity cardiac troponin I (hs-cTnI) concentration had lower diagnostic accuracy for non-ST-segment elevation myocardial infarction (for hs-cTnT, area under the curve: 0.89 [95% CI: 0.86-0.92] vs 0.94 [95% CI: 0.93-0.94] [P < 0.001]; for hs-cTnI, area under the curve: 0.93 [95% CI: 0.91-0.95] vs 0.95 [95% CI: 0.94-0.95] [P 1/4 0.10]). In patients with cancer, the European Society of Cardiology 0/1-hour hs-cTnT and hs-cTnI algorithms maintained very high safety but had lower efficacy, with twice the number of patients remaining in the observe zone. Similar findings were obtained in the external validation cohort.CONCLUSIONS Patients with cancer have a substantially higher prevalence of AMI as the cause of chest pain. Length of ED stay and hospitalization rates are increased. The diagnostic performance of hs-cTnT and the efficacy of both the European Society of Cardiology 0/1-hour hs-cTnT and hs-cTnI algorithms is reduced. (Advantageous Predictors of Acute Coronary Syndromes Evaluation [APACE] Study; NCT00470587) (J Am Coll Cardiol CardioOnc 2023;5:591-609) (c) 2023 The Authors. Published by Elsevier on behalf of the American College of Cardiology Foundation. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
23.	Bjurman, Christian, 1983, et al. (författare) Decreased admissions and hospital costs with a neutral effect on mortality following lowering of the troponin T cutoff point to the 99th percentile 2017 Ingår i: Cardiology journal. - 1897-5593 .- 1898-018X. ; 24:6, s. 612-622 Tidskriftsartikel (refereegranskat)abstract Background: The implementation of high-sensitivity cardiac troponin T (hs-cTnT) assays and a cutoff based on the 99th cTnT percentile in the evaluation of patients with suspected acute coronary syndrome has not been uniform due to uncertain effects on health benefits and utilization of limited resources.Methods:Clinical and laboratory data from patients with chest pain or dyspnea at the emergency department (ED) were evaluated before (n = 20516) and after (n = 18485) the lowering of the hs-cTnT cutoff point from 40 ng/L to the 99th hs-cTnT percentile of 14 ng/L in February 2012. Myocardial infarction (MI) was diagnosed at the discretion of the attending clinicians responsible for the patient.Results:Following lowering of the hs-cTnT cutoff point fewer ED patients with chest pain or dyspnea as the principal complaint were analyzed with an hs-cTnT sample (81% vs. 72%, p < 0.001). Overall 30-day mortality was unaffected but increased among patients not analyzed with an hs-cTnT sample (5.3% vs. 7.6%, p < 0.001). The MI frequency was unchanged (4.0% vs. 3.9%, p = 0.72) whereas admission rates decreased (51% vs. 45%, p < 0.001) as well as hospital costs. Coronary angiographies were used more frequently (2.8% vs. 3.3%, p = 0.004) but with no corresponding change in coronary interventions.Conclusions:At the participating hospital, lowering of the hs-cTnT cutoff point to the 99th percentile decreased admissions and hospital costs but did not result in any apparent prognostic or treatment benefits for the patients.
24.	Björklund, Erik, et al. (författare) Admission N-terminal pro-brain natriuretic peptide and its interaction with admission troponin T and ST segment resolution for early risk stratification in ST elevation myocardial infarction 2006 Ingår i: Heart. - : BMJ Publishing Group. - 1468-201X .- 1355-6037. ; 92:6, s. 735-40 Tidskriftsartikel (refereegranskat)abstract OBJECTIVE: To assess the long term prognostic value of N-terminal pro-brain natriuretic peptide (NT-proBNP) on admission and its prognostic interaction with both admission troponin T (TnT) concentrations and resolution of ST segment elevation in fibrinolytic treated ST elevation myocardial infarction (STEMI). DESIGN AND SETTING: Substudy of the ASSENT (assessment of the safety and efficacy of a new thrombolytic) -2 and ASSENT-PLUS trials. PATIENTS: NT-proBNP and TnT concentrations were determined on admission in 782 patients. According to NT-proBNP concentrations, patients were divided into three groups: normal concentration (for patients < or = 65 years, < or = 184 ng/l and < or = 268 ng/l and for those > 65 years, < or = 269 ng/l and < or = 391 ng/l in men and women, respectively); higher than normal but less than the median concentration (742 ng/l); and above the median concentration. For TnT, a cut off of 0.1 microg/l was used. Of the 782 patients, 456 had ST segment resolution (< 50% or > or = 50%) at 60 minutes calculated from ST monitoring. MAIN OUTCOME MEASURES: All cause one year mortality. RESULTS: One year mortality increased stepwise according to increasing concentrations of NT-proBNP (3.4%, 6.5%, and 23.5%, respectively, p < 0.001). In receiver operating characteristic analysis, NT-proBNP strongly trended to be associated more with mortality than TnT and time to 50% ST resolution (area under the curve 0.81, 95% confidence interval (CI) 0.72 to 0.9, 0.67, 95% CI 0.56 to 0.79, and 0.66, 95% CI 0.56 to 0.77, respectively). In a multivariable analysis adjusted for baseline risk factors and TnT, both raised NT-proBNP and ST resolution < 50% were independently associated with higher one year mortality, whereas raised TnT contributed independently only before information on ST resolution was added to the model. CONCLUSION: Admission NT-proBNP is a strong independent predictor of mortality and gives, together with 50% ST resolution at 60 minutes, important prognostic information even after adjustment for TnT and baseline characteristics in STEMI.
25.	Björklund, Erik, et al. (författare) Pre-hospital thrombolysis delivered by paramedics is associated with reduced time delay and mortality in ambulance-transported real-life patients with ST-elevation myocardial infarction 2006 Ingår i: European Heart Journal. - : Oxford University Press (OUP). - 0195-668X .- 1522-9645. ; 27:10, s. 1146-1152 Tidskriftsartikel (refereegranskat)abstract AIMS: There are sparse data on the impact of pre-hospital thrombolysis (PHT) in real-life patients. We therefore evaluated treatment delays and outcome in a large cohort of ambulance-transported real-life patients with ST-elevation myocardial infarction (STEMI) according to PHT delivered by paramedics or in-hospital thrombolysis. METHODS AND RESULTS: Prospective cohort study used data from the Swedish Register of Cardiac intensive care on patients admitted to the coronary care units of 75 Swedish hospitals in 2001-2004. Ambulance-transported thrombolytic-treated patients younger than age 80 with a diagnosis of acute myocardial infarction were included. Patients with PHT (n=1690) were younger, had a lower prevalence of co-morbid conditions, fewer complications, and a higher ejection fraction (EF) than in-hospital-treated patients (n=3685). Median time from symptom onset to treatment was 113 min for PHT and 165 min for in-hospital thrombolysis. One-year mortality was 7.2 vs. 11.8% for PHT and in-hospital thrombolysis, respectively. In a multivariable analysis, after adjusting for baseline characteristics and rescue angioplasty, PHT was associated with lower 1-year mortality (odds ratio 0.71, 0.55-0.92, P=0.008). CONCLUSION: When compared with regular in-hospital thrombolysis, pre-hospital diagnosis and thrombolysis with trained paramedics in the ambulances are associated with reduced time to thrombolysis by almost 1 h and reduced adjusted 1-year mortality by 30% in real-life STEMI patients.
26.	Björklund, Erik, et al. (författare) Prehospital diagnosis and start of treatment reduces time delay and mortality in real-life patients with STEMI 2005 Ingår i: Journal of Electrocardiology. - : Elsevier BV. - 0022-0736 .- 1532-8430. ; 38:4 Suppl, s. 186- Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
27.	Boeckel, Jes-Niels, et al. (författare) Adjusted Troponin I for Improved Evaluation of Patients with Chest Pain 2018 Ingår i: Scientific Reports. - : NATURE PUBLISHING GROUP. - 2045-2322. ; 8 Tidskriftsartikel (refereegranskat)abstract The use of cardiac troponins (cTn) is the gold standard for diagnosing myocardial infarction. Independent of myocardial infarction (MI), however, sex, age and kidney function affect cTn levels. Here we developed a method to adjust cTnI levels for age, sex, and renal function, maintaining a unified cut-off value such as the 99th percentile. A total of 4587 individuals enrolled in a prospective longitudinal study were used to develop a model for adjustment of cTn. cTnI levels correlated with age and estimated glomerular filtration rate (eGFR) in males/females with r(age) = 0.436/0.518 and with (r)(eGFR) = -0.142/-0.207. For adjustment, these variables served as covariates in a linear regression model with cTnl as dependent variable. This adjustment model was then applied to a real-world cohort of 1789 patients with suspected acute MI (AMI) (N = 407). Adjusting cTnI showed no relevant loss of diagnostic information, as evidenced by comparable areas under the receiver operator characteristic curves, to identify AMI in males and females for adjusted and unadjusted cTnI. In specific patients groups such as in elderly females, adjusting cTnI improved specificity for AMI compared with unadjusted cTnI. Specificity was also improved in patients with renal dysfunction by using the adjusted cTnI values. Thus, the adjustments improved the diagnostic ability of cTnI to identify AMI in elderly patients and in patients with renal dysfunction. Interpretation of cTnI values in complex emergency cases is facilitated by our method, which maintains a single diagnostic cut-off value in all patients.
28.	Bäck, Maria, 1978, et al. (författare) The SWEDEHEART secondary prevention and cardiac rehabilitation registry (SWEDEHEART CR registry) 2021 Ingår i: European Heart Journal-Quality of Care and Clinical Outcomes. - : Oxford University Press (OUP). - 2058-5225 .- 2058-1742. ; 7:5, s. 431-437 Tidskriftsartikel (refereegranskat)abstract Aims The quality registry SWEDEHEART covers data across the patient pathway after an acute myocardial infarction (MI), from hospital care to secondary prevention. Although cardiac rehabilitation (CR) is strongly recommended after an MI, there is still heterogeneity regarding standards, uptake, and adherence rates. The aim of the SWEDEHEART-CR registry is to provide continuous information on secondary prevention and CR performance to support the audit and development of evidence-based practice. To facilitate quality improvement and research initiatives, a description of the characteristics and development of the SWEDEHEART-CR registry is needed. Methods and results The SWEDEHEART-CR registry starts with data obtained during hospital care and then collects data at out-patient visits 2 months and 1-year after discharge, and at start and end of an exercise-based CR programme. The registry data covers comorbidities, biochemistry, blood pressure, anthropometric variables, medication, psychosocial- and lifestyle variables, readmissions, patient-reported outcome measures, attendance in CR-related programmes, and physical fitness variables. Over 100 000 patients with MI have been included in the SWEDEHEART-CR registry since its start in 2005. From initially covering 35 centres (47%) and 2200 patients annually (27%), SWEDEHEART-CR has developed to a nation-wide registry with 75 centres (100%) and 8800 patients annually (80%) in 2020. Conclusion The SWEDEHEART-CR registry includes a high proportion of the national MI population entering a CR programme and is a powerful tool for quality audit, improvement, and research. The registry provides insights into the characteristics, treatment, and outcomes of evidence-based secondary preventive practice, ultimately leading to better cardiovascular health.
29.	Carlhed, Rickard, et al. (författare) Improved adherence to Swedish national guidelines for acute myocardial infarction : the Quality Improvement in Coronary Care (QUICC) study 2006 Ingår i: American Heart Journal. - : Elsevier BV. - 0002-8703 .- 1097-6744. ; 152:6, s. 1175-1181 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: The adherence to evidence-based treatment guidelines for acute myocardial infarction (AMI) is still suboptimal. Therefore, we designed a study to evaluate the effects of a collaborative quality improvement (QI) intervention on the adherence to AMI guidelines. The intervention used a national web-based quality registry to generate local and regular real-time performance feedback. METHODS: A 12-month baseline measurement of the adherence rates was retrospectively collected, comprising the period July 1, 2001, through June 30, 2002. During the intervention period of November 1, 2002, through April 30, 2003, multidisciplinary teams from 19 nonrandomized intervention hospitals were subjected to a multifaceted QI-oriented intervention. Another 19 hospitals, unaware of their status as controls, were matched to the intervention hospitals. During the postintervention measurement period of May 1, 2003, through April 30, 2004, a total of 6726 consecutive patients were included at the intervention (n = 3786) and control (n = 2940) hospitals. The outcome measures comprised 5 Swedish national guideline-derived quality indicators, compared between baseline and postintervention levels in the control and QUICC intervention hospitals. RESULTS: In the control and QI intervention hospitals, the mean absolute increase of patients receiving angiotensin-converting enzyme inhibitors was 1.4% vs 12.6% (P = .002), lipid-lowering therapy 2.3% vs 7.2% (P = .065), clopidogrel 26.3% vs 41.2% (P = .010), heparin/low-molecular weight heparin 5.3% vs 16.3% (P = .010), and coronary angiography 6.2% vs 16.8% (P = .027), respectively. The number of QI intervention hospitals reaching a treatment level of at least 70% in 4 or 5 of the 5 indicators was 15 and 5, respectively. In the control group, no hospital reached 70% or more in just 4 of the 5 indicators. CONCLUSIONS: By combining a systematic and multidisciplinary QI collaborative with a web-based national quality registry with functionality allowing real-time performance feedback, major improvements in the adherence to national AMI guidelines can be achieved.
30.	Carlhed, Rickard, et al. (författare) Improved clinical outcome after acute myocardial infarction in hospitals participating in a Swedish quality improvement initiative 2009 Ingår i: Circulation. Cardiovascular quality and outcomes. - 1941-7713. ; 2:5, s. 458-464 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: The Swedish quality improvement initiative Quality Improvement in Coronary Care previously demonstrated significant improvements in caregiver adherence to national guidelines for acute myocardial infarction. The associated impact on 1-year clinical outcome is presented here. METHODS AND RESULTS: During the baseline period July 2001 to June 2002, 6878 consecutive acute myocardial infarction patients <80 years were included at the 19 intervention and 19 control hospitals and followed for a mean of 12 months. During the postintervention period of May 2003 to April 2004, 6484 patients were included and followed in the same way. From baseline to postintervention, improvements in mortality and cardiovascular readmission rates (events per 100 patient-years) were significant in the intervention group (-2.82, 95% CI -5.26 to -0.39; -9.31, 95% CI -15.48 to -3.14, respectively). However, in the control hospitals, there were no significant improvements (0.04, 95% CI -2.40 to 2.47; -4.93, 95% CI -11.10 to 1.24, respectively). Bleedings in the control group increased in incidence (0.92, 95% CI 0.41 to 1.43), whereas the incidence remained unchanged in the intervention group (0.07, 95% CI -0.44 to 0.58). When the difference of changes between the study groups were evaluated, the results still were in favor of the intervention group, albeit significant only for bleeding complications (mortality: -2.70, 95% CI -6.37 to 0.97; cardiovascular readmissions: -6.85, 95% CI -16.62 to 2.93; bleeding complications: -0.82, 95% CI -1.66 to 0.01). CONCLUSIONS: With a systematic quality improvement initiative aiming to increase the adherence to acute myocardial infarction guidelines, it is possible to achieve long-term positive effects on clinical outcome.
31.	Cederlöf, Elin, et al. (författare) Pregnancy Complications and Risk of Cardiovascular Disease Later in Life : A Nationwide Cohort Study 2022 Ingår i: Journal of the American Heart Association. - : John Wiley & Sons. - 2047-9980. ; 11:2 Tidskriftsartikel (refereegranskat)abstract Background: The aim of this study was to investigate the associations between pregnancy complications and cardiovascular mortality and hospitalizations of cardiovascular disease (CVD) after adjustment for major confounding.Methods and Results: In a nationwide register‐based cohort study, women with singleton births between 1973 and 2014 were included from the Swedish Medical Birth Register. Outcomes of mortality and hospitalizations of CVD were collected from the Cause of Death Register and the National Inpatient Register. The cohort was followed from the date of the first delivery until death or end of follow‐up, whichever occurred first. The pregnancy complications studied were preeclampsia or eclampsia, gestational hypertension, gestational diabetes, preterm birth, small for gestational age, and stillbirth. Among the 2 134 239 women (mean age at first pregnancy, 27.0 [SD, 5.1] and mean parity 1.96 [SD, 0.9]), 19.1% (N=407 597) had 1 of the studied pregnancy complications. All pregnancy complications were associated with all‐cause and cardiovascular mortality and hospitalization for CVD (ischemic heart disease, ischemic stroke, and peripheral artery disease) after adjustment for major confounding in a Cox proportional hazard regression model. The adjusted hazard ratio for cardiovascular mortality was 1.84 (95% CI, 1.38–2.44) for preterm birth and 3.14 (95% CI, 1.81–5.44) for stillbirth.Conclusions: In this large cohort study, pregnancy complications were associated with all‐cause mortality, cardiovascular mortality, and hospitalizations for CVD, also after adjusting for confounding, including overweight, smoking, and comorbidities. The study highlights that less established pregnancy complications such as preterm birth and stillbirth are also associated with cardiovascular mortality and CVD.
32.	Chapman, Andrew R., et al. (författare) Blood and imaging biomarkers in type 2 myocardial infarction 2022 Ingår i: European Heart Journal. - : Oxford University Press (OUP). - 2048-8726 .- 2048-8734. ; 11:3, s. 269-271 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
33.	Christersson, Christina, et al. (författare) The utility of coagulation activity for prediction of risk of mortality and cardiovascular events in guideline-treated myocardial infarction patients 2017 Ingår i: Upsala Journal of Medical Sciences. - : Taylor & Francis. - 0300-9734 .- 2000-1967. ; 122:4, s. 224-233 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: Despite improved treatment of myocardial infarction (MI), real-world patients still suffer substantial risk for subsequent cardiovascular events. Little is known about coagulation activity shortly after MI and whether coagulation activity markers may identify patients at increased risk despite contemporary treatment.OBJECTIVE: To evaluate D-dimer concentration and thrombin generation potential shortly after discharge after MI and evaluate if these markers could predict the risk of future cardiovascular and bleeding events.METHODS: Unselected MI patients (n = 421) were included in the observational REBUS study (NCT01102933) and followed for two years. D-dimer concentrations, thrombin peak, and endogenous thrombin potential (ETP) were analyzed at inclusion (3-5 days after MI) and at early follow-up (after 2-3 weeks).RESULTS: Seventy-five patients (17.8%) experienced the composite endpoint (all-cause death, MI, congestive heart failure, or all-cause stroke), and 31 patients (7.4%) experienced a clinically relevant bleeding event. D-dimer concentrations at early follow-up were associated with the composite endpoint (HR [per SD increase] 1.51 [95% CI 1.22-1.87]) and with clinically relevant bleeding (HR [per SD increase] 1.80 [95% CI 1.32-2.44]). Thrombin generation potential was not significantly associated with either the composite endpoint or with clinically relevant bleeding. Higher thrombin peak and ETP at early follow-up were both inversely associated with stroke (HR [per SD increase] 0.50 [95% CI 0.30-0.81] and 0.43 [95% CI 0.22-0.83], respectively).CONCLUSION: In unselected MI patients treated according to contemporary guidelines, D-dimer measurements may identify patients at increased risk of new cardiovascular and bleeding events. The inverse association of thrombin generation potential and risk of stroke has to be further investigated.
34.	Dondo, Tatendashe B., et al. (författare) beta-Blockers and Mortality After Acute Myocardial Infarction in Patients Without Heart Failure or Ventricular Dysfunction 2017 Ingår i: Journal of the American College of Cardiology. - : ELSEVIER SCIENCE INC. - 0735-1097 .- 1558-3597. ; 69:22, s. 2710-2720 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: For acute myocardial infarction (AMI) without heart failure (HF), it is unclear if beta-blockers are associated with reduced mortality.OBJECTIVES: The goal of this study was to determine the association between beta-blocker use and mortality in patients with AMI without HF or left ventricular systolic dysfunction (LVSD).METHODS: This cohort study used national English and Welsh registry data from the Myocardial Ischaemia National Audit Project. A total of 179,810 survivors of hospitalization with AMI without HF or LVSD, between January 1, 2007, and June 30, 2013 (final follow-up: December 31, 2013), were assessed. Survival-time inverse probability weighting propensity scores and instrumental variable analyses were used to investigate the association between the use of beta-blockers and 1-year mortality.RESULTS: Of 91,895 patients with ST-segment elevation myocardial infarction and 87,915 patients with non-ST-segment elevation myocardial infarction, 88,542 (96.4%) and 81,933 (93.2%) received beta-blockers, respectively. For the entire cohort, with> 163,772 person-years of observation, there were 9,373 deaths (5.2%). Unadjusted 1-year mortality was lower for patients who received beta-blockers compared with those who did not (4.9% vs. 11.2%; p < 0.001). However, after weighting and adjustment, there was no significant difference in mortality between those with and without beta-blocker use (average treatment effect [ATE] coefficient: 0.07; 95% confidence interval [CI]: -0.60 to 0.75; p = 0.827). Findings were similar for ST-segment elevation myocardial infarction (ATE coefficient: 0.30; 95% CI: -0.98 to 1.58; p = 0.637) and non-ST-segment elevation myocardial infarction (ATE coefficient: -0.07; 95% CI: -0.68 to 0.54; p = 0.819).CONCLUSIONS: Among survivors of hospitalization with AMI who did not have HF or LVSD as recorded in the hospital, the use of beta-blockers was not associated with a lower risk of death at any time point up to 1 year.
35.	Edfors, R., et al. (författare) Use of proteomics to identify biomarkers associated with chronic kidney disease and long-term outcomes in patients with myocardial infarction 2020 Ingår i: Journal of Internal Medicine. - : Wiley. - 0954-6820 .- 1365-2796. ; 288:5, s. 581-592 Tidskriftsartikel (refereegranskat)abstract Background Patients with chronic kidney disease (CKD) have poor outcomes following myocardial infarction (MI). We performed an untargeted examination of 175 biomarkers to identify those with the strongest association with CKD and to examine the association of those biomarkers with long-term outcomes. Methods A total of 175 different biomarkers from MI patients enrolled in the Swedish Web-System for Enhancement and Development of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies (SWEDEHEART) registry were analysed either by a multiple reaction monitoring mass spectrometry assay or by a multiplex assay (proximity extension assay). Random forests statistical models were used to assess the predictor importance of biomarkers, CKD and outcomes. Results A total of 1098 MI patients with a median estimated glomerular filtration rate of 85 mL min(-1)/1.73 m(2)were followed for a median of 3.2 years. The random forests analyses, without and with adjustment for differences in demography, comorbidities and severity of disease, identified six biomarkers (adrenomedullin, TNF receptor-1, adipocyte fatty acid-binding protein-4, TNF-related apoptosis-inducing ligand receptor 2, growth differentiation factor-15 and TNF receptor-2) to be strongly associated with CKD. All six biomarkers were also amongst the 15 strongest predictors for death, and four of them were amongst the strongest predictors of subsequent MI and heart failure hospitalization. Conclusion In patients with MI, a proteomic approach could identify six biomarkers that best predicted CKD. These biomarkers were also amongst the most important predictors of long-term outcomes. Thus, these biomarkers indicate underlying mechanisms that may contribute to the poor prognosis seen in patients with MI and CKD.
36.	Eggers, Kai, 1962-, et al. (författare) Impact of sex on cardiac troponin concentrations – A critical appraisal. 2017 Ingår i: Clinical Chemistry. - : Oxford University Press (OUP). - 0009-9147 .- 1530-8561. ; 63:9, s. 1457-1464 Forskningsöversikt (refereegranskat)abstract BACKGROUND:The use of sex-specific cutoffs for cardiac troponin (cTn) is currently debated. Although endorsed by scientific working groups, concerns have been raised that sex-specific cutoffs may have only a small clinical effect at the cost of increased complexity in decision-making.METHODS:We reviewed studies investigating the interrelations between high-sensitivity (hs) cTn results and sex, diagnoses, and outcome. Investigated populations included community-dwelling subjects and patients with stable angina, congestive heart failure, or acute chest pain including those with acute coronary syndromes.RESULTS:Men usually have higher hs-cTn concentrations compared with women, regardless of the assessed population or the applied assay. The distribution and prognostic implications of hs-cTn concentrations indicate that women have a broader cardiovascular risk panorama compared with men, particularly at lower hs-cTn concentrations. At higher concentrations, particularly above the 99th percentile, this variation is often attenuated. Sex-specific hs-cTn 99th percentiles have so far shown clinical net benefit in only 1 study assessing patients with chest pain. However, several methodological aspects need to be considered when interpreting study results, e.g., issues related to the determination of the 99th percentiles, the selection bias, and the lack of prospective and sufficiently powered analyses.CONCLUSIONS:Available studies do not show a consistent clinical superiority of sex-specific hs-cTn 99th percentiles. This may reflect methodological aspects. However, from a pathobiological perspective, the use of sex-specific hs-cTn 99th percentiles makes sense for the ruling in of myocardial infarction. We propose a new approach to hs-cTn 99th cutoffs taking into account the analytical properties of the used assays.
37.	Eggers, Kai M., 1962-, et al. (författare) Application of Cardiac Troponin in Cardiovascular Diseases Other Than Acute Coronary Syndrome 2017 Ingår i: Clinical Chemistry. - : AMER ASSOC CLINICAL CHEMISTRY. - 0009-9147 .- 1530-8561. ; 63:1, s. 223-235 Forskningsöversikt (refereegranskat)abstract BACKGROUND: Increased cardiac troponin concentrations in acute coronary syndrome (ACS) identify patients with ongoing cardiomyocyte necrosis who are at increased risk. However, with the use of more precise assays, cardiac troponin increases are commonly noted in other cardiovascular conditions as well. This has generated interest in the use of cardiac troponin for prognostic assessment and clinical management of these patients. In this review, we have summarized the data from studies investigating the implications of cardiac troponin concentrations in various acute and chronic conditions beyond ACS,, i.e., heart failure, myocarditis, Takotsubo cardiomyopathy, aortic dissection, supraventricular arrhythmias, valve disease, pulmonary arterial hypertension, stroke, and in the perioperative setting. CONTENT: Cardiac troponin concentrations are often detectable and frankly increased in non-ACS conditions, in particular when measured with high-sensitivity (hs) assays. With the exception of myocarditis and Takotsubo cardiomyopathy, cardiac troponin concentrations carry strong prognostic information, mainly with respect to mortality, or incipient and/or worsening heart failure. Studies investigating the prognostic benefit associated with cardiac troponin guided treatments however, are almost lacking and the potential role of cardiac troponin in the management of non-ACS conditions is not defined. SUMMARY: Increased cardiac troponin indicates increased risk for adverse outcome in patients with various cardiovascular conditions beyond ACS. Routine measurement of cardiac troponin concentrations can however, not be generally recommended unless there is a suspicion of ACS. Nonetheless, any finding of an increased cardiac troponin concentration in a patient without ACS should at least prompt the search for possible underlying conditions and these should be managed meticulously according to current guidelines to improve outcome.
38.	Eggers, Kai M., 1962-, et al. (författare) B-type natriuretic peptides and their relation to cardiovascular structure and function in a population-based sample of subjects aged 70 years 2009 Ingår i: American Journal of Cardiology. - : Elsevier BV. - 0002-9149 .- 1879-1913. ; 103:7, s. 1032-1038 Tidskriftsartikel (refereegranskat)abstract The aim of the present study was to evaluate whether B-type natriuretic peptides (BNPs) could serve as screening markers for the detection of preclinical vascular disease in the community. BNP and N-terminal-pro-BNP were analyzed in 1,000 subjects aged 70 years participating in the Prospective Investigation of the Vasculature in Uppsala Seniors (PIVUS) study and were related to different measures of endothelial function and activation, arterial compliance, carotid atherosclerosis, and echocardiographic findings. The median levels were 42.0 ng/L for BNP and 110.7 ng/L for N-terminal-pro-BNP. On adjusted multivariate analysis, the 2 BNPs were related to increased left ventricular mass and impaired left ventricular systolic and diastolic function but not to any of the other assessed entities reflecting preclinical vascular disease. In conclusion, BNPs are strong markers of increased left ventricular mass and impaired cardiac performance but cannot be regarded as useful screening markers for the detection of preclinical states of vascular disease in elderly subjects.
39.	Eggers, Kai M., 1962-, et al. (författare) Cardiac Troponin Elevation in Patients Without a Specific Diagnosis 2019 Ingår i: Journal of the American College of Cardiology. - : Elsevier BV. - 0735-1097 .- 1558-3597. ; 73:1, s. 1-9 Tidskriftsartikel (refereegranskat)abstract BACKGROUND Cardiac troponin (cTn) elevation is a common finding in acutely admitted patients, even in the absence of acute coronary syndrome. In some of these patients, no etiology of cTn elevation can be identified. The term troponinemia is sometimes used to describe this scenario.OBJECTIVES This study aimed to investigate the associations of cTn levels with clinical findings and long-term outcome in acutely admitted patients with suspected acute coronary syndrome who had been discharged without a specified diagnosis.METHODS Retrospective registry-based cohort study investigating 48,872 patients (SWEDEHEART [Swedish Web-system for Enhancement and Development of Evidence-based care in Heart disease Evaluated According to Recommended Therapies] registry). Patients were stratified into cohorts with cTn levels less than or equal to the assay-specific 99th percentile and separated by assay-specific cTn tertiles in case of higher levels.RESULTS A cTn level >99th percentile was noted in 9,800 (20.1%) patients. The prevalence of cardiovascular risk factors as well as cardiovascular and noncardiovascular comorbidities increased across higher cTn strata. In total, 7,529 (15.4%) patients had a major adverse event (MAE), defined as the composite of all-cause mortality, myocardial infarction, readmission for heart failure, or stroke (median follow-up 4.9 years). MAE risk was associated with higher cTn strata (hazard ratio for highest assay-specific cTn tertile: 2.59; 95% confidence interval: 2.39 to 2.80; hazard ratio in patients without cardiovascular comorbidities, renal dysfunction, left ventricular dysfunction, or significant coronary stenosis: 3.57; 95% confidence interval: 2.30 to 5.54).CONCLUSIONS cTn elevation is associated with cardiovascular and noncardiovascular comorbidities and predicts major adverse events in acutely admitted patients, in whom no definite diagnosis could have been established. The term troponinemia is trivializing and should be avoided. Instead, careful work-up is required in these patients.
40.	Eggers, Kai M., 1962-, et al. (författare) Cardiac Troponins and Their Prognostic Importance in Patients with Suspected Acute Coronary Syndrome and Renal Dysfunction 2017 Ingår i: Clinical Chemistry. - : Oxford University Press (OUP). - 0009-9147 .- 1530-8561. ; 63:8, s. 1409-1417 Tidskriftsartikel (refereegranskat)abstract BACKGROUND: Cardiac troponin (cTn) is important for risk assessment in patients with suspected acute coronary syndrome (ACS). cTn concentrations may, however, be affected by renal dysfunction, and the clinical importance of this interrelation is not well established. We investigated the association between cTnT and cTnI (measured with conventional assays and a more sensitive assay) with the estimated glomerular filtration rate (eGFR) and also assessed the ability of cTn to predict the 1-year all-cause mortality. METHODS: This retrospective registry-based study used data from 309454 admissions to Swedish coronary care units. cTn associations with eGFR and mortality were assessed using different regression models and by calculating multivariable-adjusted c-statistics. RESULTS: cTnT concentrations exhibited stronger associations with eGFR than cTnI concentrations (conventional cTnT assay: beta = -0.113; more sensitive cTnT assay: beta = -0.186; pooled conventional cTnI assays: beta = -0.098). Overall, cTnT provided greater prognostic accuracy than cTnI. This was most evident in non-ACS patients with normal or mildly reduced eGFR when using the more sensitive assay. Despite higher mortality rates, no consistent increases in the c-statistics of cTn were seen with severely reduced eGFR irrespective of the presence of ACS or non-ACS. CONCLUSIONS: cTnT concentrations exhibited stronger associations with reduced eGFR than cTnI concentrations in patients admitted because of suspected ACS. cTnT, particularly when measured using the more sensitive assay, also tended to be a stronger prognosticator. However, the relative significance of the obtained results must be considered in the context of the severity of renal dysfunction and whether ACS is present.
41.	Eggers, Kai M., 1962-, et al. (författare) Clinical and prognostic implications of C-reactive protein levels in myocardial infarction with nonobstructive coronary arteries 2021 Ingår i: Clinical Cardiology. - : John Wiley & Sons. - 0160-9289 .- 1932-8737. ; 44:7, s. 1019-1027 Tidskriftsartikel (refereegranskat)abstract Background Myocardial infarction with nonobstructive coronary arteries (MINOCA) is a heterogeneous condition. Recent studies suggest that MINOCA patients may have a proinflammatory disposition. The role of inflammation in MINOCA may thus be distinct to myocardial infarction with significant coronary artery disease (MI-CAD). Hypothesis We hypothesized that inflammation reflected by C-reactive protein (CRP) levels might carry unique clinical information in MINOCA. Methods This retrospective registry-based cohort study (SWEDEHEART) included 9916 patients with MINOCA and 97 970 MI-CAD patients, used for comparisons. Multivariable-adjusted regressions were applied to investigate the associations of CRP levels with clinical variables, all-cause mortality and major cardiovascular events (MACE) during a median follow-up of up to 5.3 years. Results Median admission CRP levels in patients with MINOCA and MI-CAD were 5.0 (interquartile range 2.0-9.0) mg/dl and 5.0 (interquartile range 2.1-10.0 mg/dl), respectively. CRP levels in MINOCA exhibited independent associations with various cardiovascular risk factors, comorbidities and estimates of myocardial damage. The association of CRP with peripheral artery disease tended to be stronger compared to MI-CAD. The associations with female sex, renal dysfunction and myocardial damage were stronger in MI-CAD. CRP independently predicted all-cause mortality in MINOCA (hazard ratio 1.22 [95% confidence interval 1.17-1.26]), similar to MI-CAD (p interaction = 0.904). CRP also predicted MACE (hazard ratio 1.08 [95% confidence interval 1.04-1.12]) but this association was weaker compared to MI-CAD (p interaction<.001). Conclusions We found no evidence indicating the presence of a specific inflammatory pattern in acute MINOCA compared to MI-CAD. However, CRP levels were independently, albeit moderately associated with adverse outcome.
42.	Eggers, Kai M., 1962-, et al. (författare) Clinical and prognostic implications of high-sensitivity cardiac troponin T concentrations in type 2 non-ST elevation myocardial infarction 2022 Ingår i: IJC Heart & Vasculature. - : Elsevier. - 2352-9067. ; 39 Tidskriftsartikel (refereegranskat)abstract Background: While the clinical importance of cardiac troponin is well-known in type 1 myocardial infarction (MI), evidence on this topic in type 2 MI is limited. We assessed the clinical and prognostic implications of high sensitivity cardiac troponin (hs-cTnT) concentrations in a large sample of patients with type 2 MI.Methods: Retrospective registry-based cohort study (SWEDEHEART) including 4607 patients with type 2 MI and 43,405 patients with type 1 MI, used for comparisons. Patients with ST-elevation MI were excluded. Multivariable-adjusted regressions were applied to investigate the associations of hs-cTnT concentrations (highest measured value during each hospitalization) with clinical variables and prognosis during a median follow-up of up to 1.9 years.Results: Hs-cTnT concentrations (median 264 [25th, 75th percentiles 112-654] ng/L) were significantly associated with various cardiovascular risk factors and comorbidities in type 2 non-ST elevation MI (NSTEMI) but only weakly with the underlying triggering condition. Most of these findings including the magnitude of hs-cTn release were similar to type 1 NSTEMI. Hs-cTnT (ln) independently predicted all-cause mortality (hazard ratio 1.13 [95% confidence interval 1.09-1.17]) and major adverse events (hazard ratio 1.13 [95% confidence interval 1.10-1.17]) in type 2 NSTEMI, similar as for type 1 NSTEMI according to interaction analysis. The associations of hs-cTnT (ln) with poor prognosis tended to be stronger in type 2 NSTEMI patients without known cardiovascular disease.Conclusions: Hs-cTnT concentrations independently predict adverse outcome in type 2 NSTEMI. The similarities to type 1 NSTEMI however, are striking and emphasize the difficulty to distinguish both MI types.
43.	Eggers, Kai M., et al. (författare) Clinical implications of the change of cardiac troponin I levels in patients with acute chest pain - An evaluation with respect to the Universal Definition of Myocardial Infarction 2011 Ingår i: Clinica Chimica Acta. - : Elsevier BV. - 0009-8981 .- 1873-3492. ; 412:1-2, s. 91-97 Tidskriftsartikel (refereegranskat)abstract Background: The Universal Definition of Myocardial Infarction incorporates elevated cardiac troponin levels (>99th percentile) together with a significant rise/fall of troponins as biochemical criterion. We sought to evaluate the clinical implications of the relative change of cardiac troponin I (cTnI) levels with respect to the Universal Definition in patients with acute chest pain. Methods: cTnI (Stratus CS) was measured serially in 454 patients within 24 h from admission. Acute myocardial infarction (AMI) was defined using the criteria adapted to the ESC/ACC consensus document, or corresponding to the Universal Definition together with prespecified cTnI changes of >= 20%, >= 50% and >= 100%. Follow-up was completed after 5.8 years. Results: A peak cTnI level above the 99th percentile together with a cTnI change of >= 20% was found in 160 patients of whom 25 did not have AMI according to the ESC/ACC criteria. These 160 patients had a significantly raised mortality (HR 2.5[95% CI 1.7-3.8]). Higher cTnI deltas were not associated with higher mortalities but identified smaller patient cohorts at risk. Conclusions: The Universal Definition of AMI together with a >= 20% cTnI change appears to improve the discrimination of acute from chronic causes of cTnI release, and allows a reliable identification of patients at risk.
44.	Eggers, Kai M., 1962-, et al. (författare) Combining different biochemical markers of myocardial ischemia does not improve risk stratification in chest pain patients compared to troponin I alone 2005 Ingår i: Coronary Artery Disease. - : Ovid Technologies (Wolters Kluwer Health). - 0954-6928 .- 1473-5830. ; 16:5, s. 315-9 Tidskriftsartikel (refereegranskat)abstract OBJECTIVE: Early evaluation of patients with chest pain is important not only for the detection of acute myocardial infarction (AMI) but also for identification of patients at high risk for future cardiac events. A multimarker strategy applying results of early measurements of different biochemical markers of cardiac necrosis in combination may improve risk prediction in chest pain patients. METHODS: Rapid measurements of troponin I (TnI), creatine kinase MB and myoglobin were performed in 191 consecutive patients with chest pain and a non-diagnostic electrocardiogram for AMI. The prognostic value of these markers and different multimarker strategies was evaluated and compared. RESULTS: Ten (5.2%) patients died during follow-up, which for eight (4.2%) patients was due to cardiac causes. Myocardial reinfarctions occurred in 17 (6.8%) patients. TnI was most predictive for cardiac mortality (TnI>or=0.1 microg/l, 10.7% event rate compared with TnI<0.1 microg/l, 0%, P<0.001) and myocardial reinfarction (14.9% compared with 1.7%, P<0.001). The other markers and multimarker strategies had a lower capacity for predicting adverse events apart from myoglobin and the combination of TnI or myoglobin regarding the endpoint of total mortality. CONCLUSION: The combinations of different markers were prognostically non-superior compared to TnI, which thus, should be preferred as a biochemical marker for risk stratification in patients with chest pain.
45.	Eggers, Kai M., 1962-, et al. (författare) Diagnostic and prognostic performance of the ratio between high-sensitivity cardiac troponin I and troponin T in patients with chest pain 2022 Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 17:11 Tidskriftsartikel (refereegranskat)abstract Background Elevations of high-sensitivity cardiac troponin (hs-cTn) concentrations not related to type 1 myocardial infarction are common in chest pain patients presenting to emergency departments. The discrimination of these patients from those with type 1 myocardial infarction (MI) is challenging and resource-consuming. We aimed to investigate whether the hs-cTn I/T ratio might provide diagnostic and prognostic increment in this context.Methods We calculated the hs-cTn I/T ratio in 888 chest pain patients having hs-cTnI (Abbott Laboratories) or hs-cTnT (Roche Diagnostics) concentrations above the respective 99(th) percentile at 2 hours from presentation. All patients were followed for one year regarding mortality.Results The median hs-cTn I/T ratio was 3.45 (25(th), 75(th) percentiles 1.80-6.59) in type 1 MI patients (n = 408 (sic) 46.0%]), 1.18 (0.81-1.90) in type 2 MI patients (n = 56 (sic) 6.3%]) and 0.67 (0.39-1.12) in patients without MI. The hs-cTn I/T ratio provided good discrimination of type 1 MI from no type 1 MI (area under the receiver-operator characteristic curve 0.89 (sic) 95% confidence interval 0.86-0.91]), of type 1 MI from type 2 MI (area under the curve 0.81 (sic) 95% confidence interval 0.74-0.87]), and was associated with type 1 MI in adjusted analyses. The hs-cTn I/T ratio provided no consistent prognostic value.Conclusions The hs-cTn I/T ratio appears to be useful for early diagnosis of type 1 MI and its discrimination from type 2 MI in chest pain patients presenting with elevated hs-cTn. Differences in hs-cTn I/T ratio values may reflect variations in hs-cTn release mechanisms in response to different types of myocardial injury.
46.	Eggers, Kai M., 1962-, et al. (författare) Diagnostic and prognostic performance of the ratio between high-sensitivity cardiac troponin I and troponin T in patients with chest pain. 2022 Ingår i: PloS one. - : Public Library of Science (PLoS). - 1932-6203. ; 17:11 Tidskriftsartikel (refereegranskat)abstract Elevations of high-sensitivity cardiac troponin (hs-cTn) concentrations not related to type 1 myocardial infarction are common in chest pain patients presenting to emergency departments. The discrimination of these patients from those with type 1 myocardial infarction (MI) is challenging and resource-consuming. We aimed to investigate whether the hs-cTn I/T ratio might provide diagnostic and prognostic increment in this context.We calculated the hs-cTn I/T ratio in 888 chest pain patients having hs-cTnI (Abbott Laboratories) or hs-cTnT (Roche Diagnostics) concentrations above the respective 99th percentile at 2 hours from presentation. All patients were followed for one year regarding mortality.The median hs-cTn I/T ratio was 3.45 (25th, 75th percentiles 1.80-6.59) in type 1 MI patients (n = 408 ☯46.0%]), 1.18 (0.81-1.90) in type 2 MI patients (n = 56 ☯6.3%]) and 0.67 (0.39-1.12) in patients without MI. The hs-cTn I/T ratio provided good discrimination of type 1 MI from no type 1 MI (area under the receiver-operator characteristic curve 0.89 ☯95% confidence interval 0.86-0.91]), of type 1 MI from type 2 MI (area under the curve 0.81 ☯95% confidence interval 0.74-0.87]), and was associated with type 1 MI in adjusted analyses. The hs-cTn I/T ratio provided no consistent prognostic value.The hs-cTn I/T ratio appears to be useful for early diagnosis of type 1 MI and its discrimination from type 2 MI in chest pain patients presenting with elevated hs-cTn. Differences in hs-cTn I/T ratio values may reflect variations in hs-cTn release mechanisms in response to different types of myocardial injury.
47.	Eggers, Kai M., 1962-, et al. (författare) Differences between high-sensitivity cardiac troponin T and I in stable populations : underlying causes and clinical implications 2023 Ingår i: Clinical Chemistry and Laboratory Medicine. - : Walter de Gruyter. - 1434-6621 .- 1437-4331. ; 61:3, s. 380-387 Tidskriftsartikel (refereegranskat)abstract ObjectivesMeasurement of high-sensitivity (hs) cardiac troponin (cTn) T and I is widely studied for cardiac assessment of stable populations. Recent data suggest clinical and prognostic discrepancies between both hs-cTn. We aimed at reviewing published studies with respect to underlying causes and clinical implications.ContentWe summarized current evidence on release and clearance mechanisms of cTnT and I, and on preanalytical and assay-related issues potentially portending to differences in measured concentrations. We also performed a systematic review of outcome studies comparing both hs-cTn in the general population, patients with congestive heart failure, stable coronary artery disease and atrial fibrillation.Summary and outlookFor the interpretation of concentrations of hs-cTnT, stronger association with renal dysfunction compared to hs-cTnI should be considered. Hs-cTnT also appears to be a stronger indicator of general cardiovascular morbidity and all-cause mortality. Hs-cTnI concentrations tend to be more sensitive to coronary artery disease and ischemic outcomes. These findings apparently reflect variations in the mechanisms of cardiac affections resulting in cTn release. Whether these differences are of clinically relevance remains to be elucidated. However, having the option of choosing between either hs-cTn might represent an option for framing individualized cardiac assessment in the future.
48.	Eggers, Kai M., 1962-, et al. (författare) Differences between high-sensitivity cardiac troponin T and I in stable populations: underlying causes and clinical implications. 2023 Ingår i: Clinical chemistry and laboratory medicine. - : Walter de Gruyter GmbH. - 1434-6621 .- 1437-4331. ; 61:3, s. 380-387 Tidskriftsartikel (refereegranskat)abstract Measurement of high-sensitivity (hs) cardiac troponin (cTn) T and I is widely studied for cardiac assessment of stable populations. Recent data suggest clinical and prognostic discrepancies between both hs-cTn. We aimed at reviewing published studies with respect to underlying causes and clinical implications.We summarized current evidence on release and clearance mechanisms of cTnT and I, and on preanalytical and assay-related issues potentially portending to differences in measured concentrations. We also performed a systematic review of outcome studies comparing both hs-cTn in the general population, patients with congestive heart failure, stable coronary artery disease and atrial fibrillation.For the interpretation of concentrations of hs-cTnT, stronger association with renal dysfunction compared to hs-cTnI should be considered. Hs-cTnT also appears to be a stronger indicator of general cardiovascular morbidity and all-cause mortality. Hs-cTnI concentrations tend to be more sensitive to coronary artery disease and ischemic outcomes. These findings apparently reflect variations in the mechanisms of cardiac affections resulting in cTn release. Whether these differences are of clinically relevance remains to be elucidated. However, having the option of choosing between either hs-cTn might represent an option for framing individualized cardiac assessment in the future.
49.	Eggers, Kai M., 1962-, et al. (författare) GRACE 2.0 Score for Risk Prediction in Myocardial Infarction With Nonobstructive Coronary Arteries 2021 Ingår i: Journal of the American Heart Association. - : John Wiley & Sons. - 2047-9980. ; 10:17 Tidskriftsartikel (refereegranskat)
50.	Eggers, Kai M., 1962-, et al. (författare) Growth-differentiation factor-15 for early risk stratification in patients with acute chest pain 2008 Ingår i: European Heart Journal. - : Oxford University Press (OUP). - 0195-668X .- 1522-9645. ; 29:19, s. 2327-2335 Tidskriftsartikel (refereegranskat)abstract AIMS: Growth-differentiation factor-15 (GDF-15) has emerged as a biomarker of increased mortality and recurrent myocardial infarction (MI) in patients diagnosed with non-ST-elevation acute coronary syndrome. We explored the usefulness of GDF-15 for early risk stratification in 479 unselected patients with acute chest pain. METHODS AND RESULTS: Sixty-nine per cent of the patients presented with GDF-15 levels above the previously defined upper reference limit (1200 ng/L). The risks of the composite endpoint of death or (recurrent) MI after 6 months were 1.3, 5.1, and 12.6% in patients with normal (<1200 ng/L), moderately elevated (1200-1800 ng/L), or markedly elevated (>1800 ng/L) levels of GDF-15 on admission, respectively (P < 0.001). By multivariable analysis that included clinical characteristics, ECG findings, peak cardiac troponin I levels within 2 h (cTnI(0-2 h)), N-terminal pro-B-type natriuretic peptide, C-reactive protein, and cystatin C, GDF-15 remained an independent predictor of the composite endpoint. The ability of the ECG combined with peak cTnI(0-2 h) to predict the composite endpoint was markedly improved by addition of GDF-15 (c-statistic, 0.74 vs. 0.83; P < 0.001). CONCLUSION: GDF-15 improves risk stratification in unselected patients with acute chest pain and provides prognostic information beyond clinical characteristics, the ECG, and cTnI.

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