Résumé
Background: Acute myocardial infarction (AMI) is defined as the death of cardiomyocytes due to prolonged ischemia, caused by thrombosis and / or vasospasm on an atherosclerotic plaque. Objective: To determine the incidence of patients with myocardial infarction undergoing primary angioplasty; characterize the anthropometric variables and identify the risk factors in this population. Methods: This was a cross-sectional, observational, retrospective study in which we collected secondary data from medical records of a hospital in a city in the state of São Paulo, where the largest number of interventions is via Public Health System, patients with a diagnosis of Myocardial Infarction, undergoing primary coronary angioplasty, from January 2011 to December 2013. Results: The total sample consisted of 437 subjects, 282 male and 155 female. In this study, there was predominance of myocardial infarction in the anterior descending artery ADA (45.51%), followed by right coronary artery RCA (38.46%), in carrying out the rescue angioplasty and stent implantation in 96.62% of cases. There was a predominance of high blood pressure as risk factors for 73.71%, followed by smoking with 41.66% of the sample. Conclusion: According to the present study data, it appears a higher prevalence of infarction occurred in the ADA, with individuals performing the rescue angioplasty procedure and the placement of the stent, and a growing incidence of drug stent placement. We observed a high incidence of risk factors, prevailing hypertension