Factors Related to In-Hospital Mortality Caused by Acute Myocardial Infarction

Background: the identification of factors related to mortality in acute myocardial infarction represents an essential element in the initial assessment of patients. Objective: to identify factors associated with in-hospital mortality in patients with acute myocardial infarction admitted to the Coronary Intensive Care Unit of Cienfuegos in 2010. Methods: we conducted a case series study, which included 241 patients with acute myocardial infarction admitted to the Coronary Intensive Care Unit of the Dr. Gustavo Aldereguia Lima General University Hospital of Cienfuegos in 2010. The variables analyzed were age, sex, personal medical history, type of acute myocardial infarction (according to electrocardiogram and topographic location), heart rate and blood pressure at admission, classification of heart failure according to Killip Kimball, creatinine, glucose, total cholesterol, triglycerides, CPK-MB, and cardiovascular adverse events during their hospital stay. Results: the average age of the patients was 65,6 years old, with male predominance. High blood pressure, smoking and previous myocardial infarction were the most relevant antecedents. Patients with no heart failure and preserved ejection fraction predominated. Most frequent cardiovascular adverse events were post-infarction angina, ventricular arrhythmias and cardiogenic shock. Conclusions: we found significant association with mortality and old age (> 70 years), tachycardia, blood glucose >= 7 mmol / l at admission, and the presentation of ventricular arrhythmias and cardiogenic shock during in-hospital evolution.