Cardiac stress test in patients with past myocardial infarction considering cardiovascular risk factors

Abstract

Stress testing is necessary in order to do stratification of risk and further treatment tactics in patients with acute myocardial infarction (MI) on different treatment stages. Early exercise testing in patients with acute MI gives an opportunity to get information about certain prognosis of disease and to find patients in which different types of endovascular and surgical interventions may be effective.Objective consists in analysis of cardiac stress test indices in patients with past MI considering cardiovascular risk factors.Material and methods. 175 patients with past MI and coexisting risk factors, such as stage 1 and 2 arterial hypertension, heart failure, class I–II obesity were examined. The patients were distributed in groups according to risk factors.Results. In process it was discovered that the highest exercise tolerance was observed in a group of obese patients, what was shown by number of passed steps and continuity of the test (3.82 ± 0.13) and (10.26 ± 0.36) min respectively. Decreased work capability of patients was seen in all patients groups. Maximal oxygen demand with high index was observed in a group of patients with obesity (35.31 ± 0.75) ml/min/kg, the lowest indices were gotten in a group of patients with complex risk factors (17.62 ± 0.58) ml/min/kg.Conclusions. As a result, cardiac stress testing in patients with past myocardial infarction considering cardiovascular risk factors showed the largest decrease of exercise tolerance in a group of patients that had suffered from myocardial infarction with complex cardiovascular risk factors.