Abstract
We examined differences in clinical profiles, predictors, and outcomes among patients with myocardial infarction (MI) with nonobstructive coronary arteries (MINOCAs) by sex. Data of 259 (132 males and 127 females) patients with MINOCA were consecutively collected. The primary clinical end point was major adverse cardiovascular events (MACE), including cardiovascular death, nonfatal MI, stroke, heart failure, and angina rehospitalization. Female patients with MINOCA were likely to be older than male patients with higher non-ST elevation myocardial infarction rate. Total cholesterol, high-density lipoprotein cholesterol, and low-density lipoprotein cholesterol levels were higher in female patients while male patients were more likely to have a smoking history, greater ST elevation myocardial infarction rate, higher diastolic blood pressure, and more alcohol use. During the 2-year follow-up, the incidence of MACE in males and females was similar (18% vs 20.2%, respectively; P = .673). The multivariable predictors of MACE in the female group were age, hypertension, and left ventricular ejection fraction (LVEF), whereas diabetes, smoking, and LVEF were multivariable predictors of MACE in the male group. In conclusion, there were differences in the clinical profiles between sexes. Clinical outcome was similar between male and female patients with MINOCA, whereas predictive risk factors varied.
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