The effect of left atrium volume on patients' prognosis in acute myocardial infarction.

evaluated the effect of left atrium volume on patients' prognosis following acute myocardial infarction. It was cohort study conducted on 100 patients who were admitted with acute myocardial infarction. They were studied for 9 months and their one-month mortality rate was evaluated. The patients' demographic factors, risk factors, mechanical and arrhythmic complications, and echocardiography indices such as systolic and diastolic functions, and left atrium volume were noted. It was seen that mortality (27.3%, 6.22) in patients with atrium index>32ml/m2 is more compared to cases with lower atrium index (1.3%, 1.78) (p 0.05). The study indicated the lack of any meaningful difference in patients' mortality rate in terms of hypertension, diabetes, smoking, and dyslipidaemia. However, mortality rate was significantly higher in myocardial infarction as a result of elevated-ST segment, diastolic dysfunction, restrictive pattern, ejection fraction of left atrium 32ml/m2. High volume of the left atrium independently refers to bad prognosis in patients with acute myocardial infarction which is confirmed with the outcome of clinical predictors and common echocardiography indices, even following modification.5,6