title: [Prospective study on post-acute myocardial infarction patients].
abstract: Long-term prognosis in acute myocardial infarction (AMI) can be related to a number of risk factors, including the electrocardiographic stress test (ECG Test). This study analyzes its contribution to the prognosis and management of such patients. 60 individuals discharged from a coronary care unit, without or with persisting complications underwent an ECG test 4-6 weeks following AMI, and were followed for a period of 12-39 months. 40 cases had a negative ECG test. During follow-up they continued to be generally asymptomatic and their survival was 100%. Coronary angiography in patients younger than 45 years revealed mainly single vessel disease. 20 cases (33%) had a positive ECG test. During follow-up 50% of these had anginal manifestations, and coronary angiograms revealed mainly 2-3 vessel disease. 6 patients underwent surgical revascularization. One patient died awaiting surgery. Overall survival in this group was 95%. It is concluded that stress testing performed during the convalescence period of patients with an AMI allows recognition of patients with a potentially poorer prognosis, which can be modified by appropriate study and revascularization in selected cases, bringing survival expectations to the same level of more benign cases.
authors.affiliation: Sección de Cardiología, Facultad de Medicina, Universidad de Chile, Hospital del Salvador, Santiago.
authors.forename: C
authors.initials: C
authors.lastname: Rey
authors.forename: C
authors.initials: C
authors.lastname: Parra
authors.forename: J
authors.initials: J
authors.lastname: Beregovich
mesh_terms: D000328:Adult; D000368:Aged; D004562:Electrocardiography / Q000379:methods*; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications / Q000503:physiopathology*; D011237:Predictive Value of Tests; D011379:Prognosis; D011446:Prospective Studies; D012307:Risk Factors; D013997:Time Factors
vernacular_title: Estudio prospectivo en pacientes post-infarto agudo del miocardio.