Safety of stress testing during the evolution of unstable angina pectoris or non-ST-elevation myocardial infarction
Patients (n = 1,106) were chosen from the conservative arm of the Treat Angina with aggrastat and determine Cost of Therapy with an Invasive or Conservative Strategy-Thrombolysis In Myocardial Infarction (TACTICS-TIMI) 18 trial. Only 1 patient had a myocardial infarction and another died on the day of stress testing (mortality 0.12%). In patients with unstable angina pectoris or non-ST-elevation myocardial infarction treated with aspirin, heparin, and tirofiban, performance of an exercise or a pharmacologic stress test in selected patients within 48 to 72 hours after admission appears to be associated with a low risk of complications.
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