Abstract 13518: Low Skeletal Muscle Mass Index is Associated With Cardiovascular Events in Patients After ST-segment Elevation Myocardial Infarction

Introduction: Although it has been implicated the association between low skeletal muscle mass and cardiovascular diseases, the prognostic value of skeletal muscle mass in patients with ST-segment elevation myocardial infarction (STEMI) is unclear. Hypothesis: We assessed the hypothesis that low skeletal muscle mass index (SMMI) is associated with an increased risk of secondary cardiovascular events in patients with STEMI. Methods: A total of 200 patients with STEMI were enrolled. SMMI was estimated from dual-energy X-ray absorptiometry scan before discharge, and calculated by dividing appendicular skeletal muscle mass (kg) by height squared (m2). The patients were divided into low and high SMMI groups using the first tertile of SMMI. Low SMMI was defined as ≤6.843 kg/m2 for men and ≤5.321 kg/m2 for women. All patients were followed for cardiovascular events, which consist of cardiovascular deaths, nonfatal myocardial infarctions, nonfatal ischemic strokes, and congestive heart failure. Results: During fo...