| 1. |
- Almroth, Henrik, et al.
(författare)
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Atorvastatin and persistent atrial fibrillation following cardioversion : a randomized placebo-controlled multicentre study
- 2009
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Ingår i: European Heart Journal. - Philadelphia : Oxford University Press (OUP). - 0195-668X .- 1522-9645. ; 30:7, s. 827-833
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: To evaluate the effect of atorvastatin in achieving stable sinus rhythm (SR) 30 days after electrical cardioversion (CV) in patients with persistent atrial fibrillation (AF). METHODS AND RESULTS: The study included 234 patients. The patients were randomized to treatment with atorvastatin 80 mg daily (n = 118) or placebo (n = 116) in a prospective, double-blinded fashion. Treatment was initiated 14 days before CV and was continued 30 days after CV. The two groups were well-balanced with respect to baseline characteristics. Mean age was 65 +/- 10 years, 76% of the patients were male and 4% had ischaemic heart disease. Study medication was well-tolerated in all patients but one. Before primary endpoint 12 patients were excluded. In the atorvastatin group 99 patients (89%) converted to SR at electrical CV compared with 95 (86%) in the placebo group (P = 0.42). An intention-to-treat analysis with the available data, by randomization group, showed that 57 (51%) in the atorvastatin group and 47 (42%) in the placebo group were in SR 30 days after CV (OR 1.44, 95%CI 0.85-2.44, P = 0.18). CONCLUSION: Atorvastatin was not statistically superior to placebo with regards to maintaining SR 30 days after CV in patients with persistent AF.
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| 2. |
- Andersson, Jonas, et al.
(författare)
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Markers of fibrinolysis as predictors for maintenance of sinus rhythm after electrical cardioversion
- 2011
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Ingår i: Thrombosis Research. - : Elsevier BV. - 0049-3848 .- 1879-2472. ; 127:3, s. 189-192
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Tidskriftsartikel (refereegranskat)abstract
- No fibrinolytic component alone was found to be a predictor of recurrence of atrial fibrillation. In multivariate models lower PAI-1 mass was associated with sinus rhythm even after adjusting for CRP, markers of the metabolic syndrome and treatment with atorvastatin. Our findings suggest a patophysiological link between AF and PAI-1 mass but the relation to inflammation remains unclear.
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| 3. |
- Andersson, Jonas, et al.
(författare)
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NT-proBNP predicts maintenance of sinus rhythm after electrical cardioversion.
- 2015
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Ingår i: Thrombosis Research. - : Elsevier BV. - 0049-3848 .- 1879-2472. ; 135:2, s. 289-291
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Atrial fibrillation (AF) is the most common arrhythmia. NT-proBNP is a fragment of the prohormone brain natriuretic peptide. Previous studies indicate that increased levels of NT-proBNP are associated with higher recurrence rates of AF after electrical cardioversion. Our null hypothesis was that NT-proBNP does not predict recurrence of AF after restoration of sinus rhythm.METHODS: We performed a hypothesis generating study within a double-blinded, placebo-controlled, randomized, prospective multicentre study of the effects of atorvastatin on recurrence of AF after electrical cardioversion. 199 patients with persistent AF and an indication for cardioversion were included in the present substudy. NT-proBNP was assessed prior to cardioversion. Cardioversion was performed according to local standard clinical practice on an elective outpatient basis. Patients were followed-up one month after cardioversion.RESULTS: 181 patients had a successful cardioversion and 91 of the study group remained in sinus rhythm at day 30. Recurrence of AF was observed in 108 patients at day 30. An optimal cutpoint for NT-proBNP at 500 ng/L predicted recurrence of AF after cardioversion (OR 2.94; 95% CI 1.30-6.63). In multivariate analysis adjusting for age, sex, hypertension, and treatment group strengthened the results (OR 3,56; 95% CI 1,44-8,81). When analysing the ROC curve of NT-proBNP in baseline and atrial fibrillation at day 30 the result was 0.57.CONCLUSION: NT-proBNP levels are a predictor of recurrence of AF 30 days after cardioversion. ROC curves indicates that the practical value of NT-proBNP for the individual patient is limited.
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| 4. |
- Cederström, Sofia, et al.
(författare)
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Association between high-sensitivity C-reactive protein and coronary atherosclerosis in a general middle-aged population.
- 2023
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Ingår i: Scientific reports. - : Springer Nature. - 2045-2322. ; 13:1
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Tidskriftsartikel (refereegranskat)abstract
- Despite abundant knowledge about the relationship between inflammation and coronary atherosclerosis, it is still unknown whether systemic inflammation measured as high-sensitivity C-reactive protein (hsCRP) is associated with coronary atherosclerosis in a general population. This study aimed to examine the association between hsCRP and coronary computed tomography angiography (CCTA)-detected coronary atherosclerosis in a population-based cohort. Out of 30,154 randomly invited men and women aged 50 to 64years in the Swedish Cardiopulmonary Bioimage Study (SCAPIS), 25,408 had a technically acceptable CCTA and analysed hsCRP. Coronary atherosclerosis was defined as presence of plaque of any degree in any of 18 coronary segments. HsCRP values were categorised in four groups. Compared with hsCRP below the detection limit, elevated hsCRP (≥2.3mg/L) was weakly associated with any coronary atherosclerosis (OR 1.15, 95% CI 1.07-1.24), coronary diameter stenosis≥50% (OR 1.27, 95% CI 1.09-1.47),≥4 segments involved (OR 1.13, 95% CI 1.01-1.26 ) and severe atherosclerosis (OR 1.33, 95% CI 1.05-1.69) after adjustment for age, sex and traditional risk factors. The associations were attenuated after further adjustment for body mass index (BMI), although elevated hsCRP still associated with noncalcified plaques (OR 1.16, 95% CI 1.02-1.32), proposed to be more vulnerable. In conclusion, the additional value of hsCRP to traditional risk factors in detection of coronary atherosclerosis is low. The association to high-risk noncalcified plaques, although unlikely through a causal pathway, could explain the relationship between hsCRP and clinical coronary events in numerous studies.
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| 5. |
- Ekström, Mattias, et al.
(författare)
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Acute Systemic Inflammation is Unlikely to Affect Adiponectin and Leptin Synthesis in Humans
- 2015
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Ingår i: Frontiers in Cardiovascular Medicine. - : Frontiers Media SA. - 2297-055X. ; 2
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Tidskriftsartikel (refereegranskat)abstract
- Adipose tissue (AT), classically thought to be merely an energy store, has been shown to produce inflammatory and metabolically active cytokines. Recently, adiponectin and leptin, adipokines primarily synthesized by adipocytes, have attracted considerable attention because inflammation has been suggested to modulate adipokine levels. However, the regulation of adiponectin and leptin is complex and the knowledge about their synthesis within the early onset of inflammation is poorly understood. The aim of this study was to investigate if the synthesis of adiponectin and leptin is affected during the early phase of an acute systemic inflammation. Eighteen healthy subjects were allocated to vaccination against Salmonella typhi or to a control group, and adiponectin and leptin concentrations measured in plasma during 24 h. Nine patients, without markers of inflammation, undergoing open heart surgery were investigated before and after the operation by analysis of plasma levels and AT gene expression of adiponectin and leptin. Plasma interleukin (IL)-6 concentrations were measured in both cohorts. Plasma levels of IL-6 were doubled after vaccination and increased 30-fold after open heart surgery. Plasma levels of adiponectin and leptin were unchanged after vaccination whereas adiponectin and leptin tended to decrease after surgery. The gene expression of adiponectin and leptin was unaltered in omental and subcutaneous AT after surgery. Despite the use of two models of stimulated in vivo systemic inflammation, we found no evidence of an early regulation of adiponectin and leptin synthesis, indicating that these two adipokines are not key elements in an acute systemic inflammation in humans.
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| 6. |
- Höglund, Niklas, et al.
(författare)
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The predictive value of C-reactive protein on recurrence of atrial fibrillation after cardioversion with or without treatment with atorvastatin
- 2013
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Ingår i: International Journal of Cardiology. - : Elsevier. - 0167-5273 .- 1874-1754. ; 167:5, s. 2088-2091
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Tidskriftsartikel (refereegranskat)abstract
- Background: The aim of this study was to investigate whether high-sensitivity C-reactive protein (hsCRP) levels prior to cardioversion (CV) predict recurrence of atrial fibrillation (AF) in patients randomized to treatment with either atorvastatin or placebo 30 and 180 days after CV. Methods: This was a prespecified substudy of 128 patients with persistent AF randomized to treatment with atorvastatin 80 mg/day or placebo, initiated 14 days before CV, and continued 30 days after CV. HsCRP levels were measured at randomization, at the time of CV, and 2 days and 30 days after CV. Results: In univariate analysis of those who were in sinus rhythm 2 h after CV, hsCRP did not significantly (odds ratio [OR] 1.11, 95% confidence interval [CI] 0.99-1.25) predict recurrence of AF at 30 days. However, after adjusting for treatment with atorvastatin, hsCRP predicted the recurrence of AF (OR 1.14, 95% CI 1.01-1.27). In a multivariate logistic regression analysis with gender, age, body mass index (BMI), smoking, cholesterol, and treatment with atorvastatin as covariates, the association was still significant (OR 1.14, 95% CI 1.01-1.29). Six months after CV, hsCRP at randomization predicted recurrence of AF in both univariate analysis (OR 1.30, 95% CI 1.06-1.60) and in multivariate logistic regression analysis (OR 1.33, 95% CI 1.06-1.67). Conclusion: HsCRP was associated with AF recurrence one and six months after successful CV of persistent AF. However, the association at one month was significant only after adjusting for atorvastatin treatment.
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| 7. |
- Ulvenstam, Anders, 1975-
(författare)
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Cardiovascular events after acute coronary syndrome with special reference to ischemic stroke
- 2021
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Background: Acute coronary syndrome (ACS) encompasses acute myocardial infarction (AMI) and unstable angina (UA). It is a global major cause of morbidity and mortality in both the short and long terms. The risk for recurrent ischemic cardiovascular (CV) events and death after ACS depends on patient factors at presentation, revascularization and secondary prevention measures. Of these, ischemic stroke (IS) is a feared and potentially devastating complication that confers suffering for the individual patient and an economic burden on society. ACS and secondary prevention treatment have gone through dramatic improvements during recent decades. These improvements, together with an improved risk factor profile in the general population, have led to lower morbidity and halved mortality. ACS and IS share many risk factors. Most of our knowledge about prognosis and risk of recurrent ischemic events after ACS is based on clinical trials and it is uncertain whether these findings can be translated to the general population. Aims: The study aims were as follows: to estimate the rate, time trends, risk factors and effects on mortality of IS after an AMI during the decades that ACS and secondary prevention treatment improved; to study wether the switch from the antiplatelet agent clopidogrel to ticagrelor influenced post-AMI IS risk in patients treated with PCI, based on data from the SWEDEHEART register; and to estimate the long-term rate of subsequent CV events after ACS in an unselected cohort of ACS patients, based on the ACS-population in the Nurse-based Age- independent Intervention to Limit Evolution of Disease After Acute Coronary Syndrome (NAILED-ACS) study. Methods: In papers I–IV, data from the SWEDEHEART register were merged with the Swedish National Patient Register (NPR) to identify patients with AMI and subsequent ischemic stroke. In paper V, data were obtained from the NAILED-ACS study. Survival analysis with Kaplan–Meier estimates and hazard ratios for risk factors with Cox proportional hazards regression models were calculated in all five studies. When appropriate, propensity scores and competing risk analyses were used to adjust for baseline differences and a high overall mortality rate, respectively. Results: The overall IS rates at 30 days and 1 year after AMI were 2.1 and 4.1% respectively, during the study period (1998–2008). The rate of IS after AMI decreased over time, both at 30 days and at 1 year, with relative risk reductions (RRRs) of 11% at 30 days and 20% at 1 iii year respectively, when comparing the beginning and end of the study period. AMI complicated by IS within 1 year had a higher mortality rate than AMI without IS (36.5 vs. 18.3%). The mortality rates decreased during 1998– 2008, by 9.4% in patients with IS and 7.5% in those without IS.The introduction of dual antiplatelet therapy (DAPT) with ticagrelor instead of clopidogrel was associated with a 21% relative risk reduction of IS within 1 year after AMI in patients treated with PCI. The rate of recurrent CV events (CV death, AMI and IS) after ACS during the first year was 10.3% and remained high during a median follow-up time of 4.7 years, at 28.6%.Predictors of increased risk of recurrent ischemic events were older age, female sex, previously established CV and cerebrovascular disease, hypertension, atrial fibrillation, diabetes mellitus, heart failure and renal disease. Reperfusion and revascularization procedures in the acute phase as well as evidence-based secondary prevention treatment were associated with a protective effect against recurrent ischemic events. Conclusion: The results reported in this thesis indicate an overall high rate of recurrent CV events after ACS based on a contemporary, unselected population of ACS patients. IS a relatively rare, but serious complication after AMI that confers a substantially increased mortality risk. The rate and mortality risk of IS after AMI have decreased over time. Improved, evidence-based treatment, both in the acute phase and in the long term, has most likely reduced the post-ACS risk of recurrent ischemic events in general and more specifically of IS. The switch from clopidogrel to ticagrelor was associated with a small, but statistically significant reduction in IS risk in PCI-treated AMI patients.
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| 8. |
- Welén Schef, Kerstin, et al.
(författare)
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Prevalence of angina pectoris and association with coronary atherosclerosis in a general population
- 2023
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Ingår i: Heart. - : BMJ Publishing Group Ltd. - 1355-6037 .- 1468-201X. ; 109:19, s. 1450-1459
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To assess the contemporary prevalence of, and factors associated with angina pectoris symptoms, and to examine the relationship to coronary atherosclerosis in a middle-aged, general population.Methods: Data were based on the Swedish CArdioPulmonary bioImage Study (SCAPIS), in which 30 154 individuals were randomly recruited from the general population between 2013 and 2018. Participants that completed the Rose Angina Questionnaire were included and categorised as angina or no angina. Subjects with a valid coronary CT angiography (CCTA) were categorised by degree of coronary atherosclerosis; ≥50% obstruction (obstructive coronary atherosclerosis), <50% obstruction or any atheromatosis (non-obstructive coronary atherosclerosis) or none (no coronary atherosclerosis).Results: The study population consisted of 28 974 questionnaire responders (median age 57.4 years, female 51.6%, hypertension 19.9%, hyperlipidaemia 7.9%, diabetes mellitus 3.7%), of which 1025 (3.5%) fulfilled the criteria of angina. Coronary atherosclerosis was more common in individuals having angina compared with those with no angina (n=24 602, obstructive coronary atherosclerosis 11.8% vs 5.4%, non-obstructive coronary atherosclerosis 38.9% vs 37.0%, no coronary atherosclerosis 49.4% vs 57.7%, all p<0.001). Factors independently associated with angina were birthplace outside of Sweden (OR 2.58 (95% CI 2.10 to 2.92)), low educational level (OR 1.41 (1.10 to 1.79)), unemployment (OR 1.51 (1.27 to 1.81)), poor economic status (OR 1.85 (1.38 to 2.47)), symptoms of depression (OR 1.63 (1.38 to 1.92)) and high degree of stress (OR 2.92 (1.80 to 4.73)).Conclusion: Angina pectoris symptoms are common (3.5%) among middle-aged individuals of the general population of Sweden, though with low association to obstructive coronary atherosclerosis. Sociodemographic and psychological factors are highly associated with angina symptoms, irrespective of degree of coronary atherosclerosis.
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