Perfil de comprometimento coronariano e desfechos observados em pacientes após infarto agudo do miocárdio com supradesnivelamento do segmento ST em Xanxerê entre 2019 e 2020

Abstract

This study analyzed the profile of coronary involvement as well as the expressiveness of risk factors in prognosis of patients with acute myocardial infarction with ST-segment elevation after primary percutaneous coronary intervention in a cardiology referral hospital in western Santa Catarina between 2019 and 2020. Data obtained from medical records of 207 patients with acute ST-segment elevation myocardial infarction who underwent primary angioplasty were analyzed. The study analyzed the association between left ventricular dysfunction in patients with acute myocardial infarction with ST-segment elevation undergoing primary angioplasty. The profile of coronary involvement and the presence of comorbidities in order to categorize them as predictors or not of ventricular dysfunction. With regard to coronary involvement, it was found that the left anterior descending, right coronary and circumflex coronary arteries were affected in 58.9% (n=122), 32.9% (n=68) and 15.5% ( n=32) of patients, respectively. Among them, 7.8% (n=16) had more than one affected artery. When analyzing the general characteristics of the sample in relation to ventricular dysfunction, there was a significant statistically association with the presence of previous infarction and diabetes mellitus. Isolated previous infarction was associated with 4.782 [95%CI: 1.824 – 11.886] times more chance of ventricular dysfunction, while isolated diabetes mellitus showed a strong trend (OR 1.964 [95%CI 0.991 – 4.817]) to this outcome. It was concluded that the left anterior descending artery is the most affected artery and that diabetes mellitus and the presence of a previous infarction, concomitantly, are risk factors for a worse prognosis.