BACKGROUND: Although peak creatine kinase-myocardial band (CK-MB) and troponin levels have been correlated with mortality among patients with acute myocardial infarction (AMI), the independent prognostic implications of these markers have not been compared. HYPOTHESIS: We hypothesized that in patients with AMI, peak troponin levels (as compared to peak CK-MB levels) would have greater prognostic value. METHODS: We examined AMI patients in the National Cardiovascular Data Registry ACTION Registry-GWTG (Acute Coronary Treatment and Intervention Outcomes Network Registry-Get With The Guidelines) with CK-MB and troponin I levels recorded, excluding patients who were transferred in or out. Peak marker levels, standardized by the local laboratory upper limit of normal and assay standard deviation, were fitted into the previously validated ACTION Registry-GWTG mortality model to compare prognostic value. RESULTS: Between January 2007 and March 2009, 16 009 ST-segment elevation myocardial infarction (STEMI) and 26854 non-ST-segment elevation myocardial infarction (NSTEMI) patients were identified. Peak marker ratios were directly associated with in-hospital mortality in both STEMI and NSTEMI patients. Peak CK-MB had slightly greater discrimination compared with peak troponin I in predicting mortality in both STEMI (model C-statistic 0.881 vs 0.877, P = 0.011) and NSTEMI (C-statistic 0.831 vs 0.824, P = 0.001) patients. CONCLUSIONS: Both peak CK-MB and peak troponin I levels are independently associated with in-hospital mortality in this large contemporary database of AMI patients treated in routine practice. Peak marker values slightly improved model performance in prognosticating in-hospital mortality; the incremental value was higher with CK-MB than with troponin I. These findings may help to guide future risk stratification algorithms and contribute to more efficient use of serial cardiac marker measurements in clinical practice.
BACKGROUND: Although peak creatine kinase-myocardial band (CK-MB) and troponin levels have been correlated with mortality among patients with acute myocardial infarction (AMI), the independent prognostic implications of these markers have not been compared. HYPOTHESIS: We hypothesized that in patients with AMI, peak troponin levels (as compared to peak CK-MB levels) would have greater prognostic value. METHODS: We examined AMI patients in the National Cardiovascular Data Registry ACTION Registry-GWTG (Acute Coronary Treatment and Intervention Outcomes Network Registry-Get With The Guidelines) with CK-MB and troponin I levels recorded, excluding patients who were transferred in or out. Peak marker levels, standardized by the local laboratory upper limit of normal and assay standard deviation, were fitted into the previously validated ACTION Registry-GWTG mortality model to compare prognostic value. RESULTS: Between January 2007 and March 2009, 16 009 ST-segment elevation myocardial infarction (STEMI) and 26854 non-ST-segment elevation myocardial infarction (NSTEMI) patients were identified. Peak marker ratios were directly associated with in-hospital mortality in both STEMI and NSTEMI patients. Peak CK-MB had slightly greater discrimination compared with peak troponin I in predicting mortality in both STEMI (model C-statistic 0.881 vs 0.877, P = 0.011) and NSTEMI (C-statistic 0.831 vs 0.824, P = 0.001) patients. CONCLUSIONS: Both peak CK-MB and peak troponin I levels are independently associated with in-hospital mortality in this large contemporary database of AMI patients treated in routine practice. Peak marker values slightly improved model performance in prognosticating in-hospital mortality; the incremental value was higher with CK-MB than with troponin I. These findings may help to guide future risk stratification algorithms and contribute to more efficient use of serial cardiac marker measurements in clinical practice.
Authors: Robin Mathews; Tracy Y Wang; Emily Honeycutt; Timothy D Henry; Marjorie Zettler; Michael Chang; Gregg C Fonarow; Eric D Peterson Journal: Am Heart J Date: 2015-04-02 Impact factor: 4.749
Authors: Andrea Di Marco; Marcos Rodriguez; Juan Cinca; Antoni Bayes-Genis; Jose T Ortiz-Perez; Albert Ariza-Solé; Jose Carlos Sanchez-Salado; Alessandro Sionis; Jany Rodriguez; Beatriz Toledano; Pau Codina; Eduard Solé-González; Monica Masotti; Joan Antoni Gómez-Hospital; Ángel Cequier; Ignasi Anguera Journal: J Am Heart Assoc Date: 2020-07-04 Impact factor: 5.501
Authors: Timo Schmitz; Christian Thilo; Jakob Linseisen; Margit Heier; Annette Peters; Bernhard Kuch; Christa Meisinger Journal: Sci Rep Date: 2021-03-18 Impact factor: 4.379
Authors: Suzanne de Waha; Ingo Eitel; Steffen Desch; Georg Fuernau; Philipp Lurz; Thomas Stiermaier; Stephan Blazek; Gerhard Schuler; Holger Thiele Journal: Trials Date: 2014-06-25 Impact factor: 2.279