Valor da prova de esforço na estratificação de risco após enfarte agudo do miocárdio.

Abstract

To assess the prognostic value of predischarge exercise testing (ET) in patients hospitalized for acute myocardial infarction (AMI).Department of Cardiology in a reference hospital for Interventional CardiologyBetween January 1990 and December 1994, 178 patients hospitalized for AMI were discharged and referred to the outpatient clinic (mean follow up, 1049 +/- 612 days). Eighty-two percent of these patients were men, mean age--56 +/- 12 years. Patients that did not perform predischarge ET (Group A, n 77) were retrospectively compared with those who did (Group B, n = 101). In relation to demographic and clinical characteristics; we analysed cardiac events (CE) and death during the first 18 months after discharge in both groups. In group B patients, we studied the relation of ET parameters (duration of exercise, occurrence of exercise-induced ischaemia and arrhythmias, maximum heart rate, blood pressure response, rate pressure product and severity score) to CE and death during the first 18 months after AMI.The proportion of patients aged 70 years or older was greater in group A (23% vs 3%, P 2 (45% vs 18%, P 2 (95% vs 56%, P 2 and inadequate rise in systolic blood pressure.