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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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49.
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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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