PMID- 26350221 OWN - NLM STAT- MEDLINE DCOM- 20160907 LR - 20181113 IS - 1937-5395 (Electronic) IS - 1937-5387 (Linking) VI - 8 IP - 8 DP - 2015 Nov TI - T-Wave Alternans Is Linked to Microvascular Obstruction and to Recurrent Coronary Ischemia After Myocardial Infarction. PG - 484-92 LID - 10.1007/s12265-015-9649-x [doi] AB - The purpose of this study is to investigate the relationship between T-wave alternans (TWA), infarct size and microvascular obstruction (MVO) and recurrent cardiac morbidity after ST elevation myocardial infarction (STEMI). One hundred six patients underwent TWA testing 1-12 months and 57 patients underwent cardiac magnetic resonance imaging (MRI) in the first 2-4 days after STEMI. During follow-up (3.5 +/- 0.5 years), death (n = 2), ventricular tachycardia (n = 3), supraventricular tachycardia (n = 4), heart failure (n = 3) and recurrent coronary ischemia (n = 25) were observed. After multivariate analysis, positive TWA (HR2.59, CI1.10-6.11, p0.024) and larger MVO (HR1.08, CI1.01-1.16, p0.034) were associated with recurrent angina or ACS. Presence of MVO was correlated with TWA (Spearman rho 0.404, p0.002) and the impairment of LVEF (-0.524, p < 0.001). Patients after STEMI remain at a high risk of symptoms of coronary ischemia. The presence of MVO and TWA 1-12 months after STEMI is related to each other and to recurrent angina or ACS. FAU - Flore, V AU - Flore V AD - Division of Experimental Cardiology, Department of Cardiovascular Diseases, University of Leuven, Leuven, Belgium. vincent.flore@outlook.com. AD - Division of Clinical Cardiology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium. vincent.flore@outlook.com. FAU - Claus, P AU - Claus P AD - Division of Imaging and Cardiovascular Dynamics, Department of Cardiovascular Diseases, University of Leuven, Leuven, Belgium. FAU - Vos, M A AU - Vos MA AD - Department of Medical Physiology, Division of Heart and Lungs, University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands. FAU - Vandenberk, B AU - Vandenberk B AD - Division of Experimental Cardiology, Department of Cardiovascular Diseases, University of Leuven, Leuven, Belgium. FAU - Van Soest, S AU - Van Soest S AD - Division of Experimental Cardiology, Department of Cardiovascular Diseases, University of Leuven, Leuven, Belgium. FAU - Sipido, K R AU - Sipido KR AD - Division of Experimental Cardiology, Department of Cardiovascular Diseases, University of Leuven, Leuven, Belgium. FAU - Adriaenssens, T AU - Adriaenssens T AD - Division of Clinical Cardiology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium. FAU - Bogaert, J AU - Bogaert J AD - Department of Imaging and Pathology, University of Leuven, Leuven, Belgium. FAU - Desmet, W AU - Desmet W AD - Division of Clinical Cardiology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium. FAU - Willems, R AU - Willems R AD - Division of Experimental Cardiology, Department of Cardiovascular Diseases, University of Leuven, Leuven, Belgium. AD - Division of Clinical Cardiology, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150908 PL - United States TA - J Cardiovasc Transl Res JT - Journal of cardiovascular translational research JID - 101468585 SB - IM MH - Acute Coronary Syndrome/diagnosis/*etiology/mortality/physiopathology MH - Adult MH - Aged MH - Angina Pectoris/diagnosis/*etiology/mortality/physiopathology MH - Arrhythmias, Cardiac/diagnosis/*etiology/mortality/physiopathology MH - Chi-Square Distribution MH - *Coronary Circulation MH - Electrocardiography MH - Female MH - Heart Conduction System/*physiopathology MH - Humans MH - Kaplan-Meier Estimate MH - Magnetic Resonance Imaging MH - Male MH - *Microcirculation MH - Middle Aged MH - Multivariate Analysis MH - Myocardial Infarction/*complications/diagnosis/mortality/physiopathology/therapy MH - Predictive Value of Tests MH - Proportional Hazards Models MH - Recurrence MH - Risk Assessment MH - Risk Factors MH - Stroke Volume MH - Time Factors MH - Ventricular Function, Left OTO - NOTNLM OT - Cardiac magnetic resonance imaging OT - Microvascular obstruction OT - Non-invasive risk stratification OT - ST segment elevation myocardial infarction OT - t-wave alternans EDAT- 2015/09/10 06:00 MHDA- 2016/09/08 06:00 CRDT- 2015/09/10 06:00 PHST- 2015/06/03 00:00 [received] PHST- 2015/08/21 00:00 [accepted] PHST- 2015/09/10 06:00 [entrez] PHST- 2015/09/10 06:00 [pubmed] PHST- 2016/09/08 06:00 [medline] AID - 10.1007/s12265-015-9649-x [pii] AID - 10.1007/s12265-015-9649-x [doi] PST - ppublish SO - J Cardiovasc Transl Res. 2015 Nov;8(8):484-92. doi: 10.1007/s12265-015-9649-x. Epub 2015 Sep 8.