The exercise test that indicates a low risk of events. Differences in prognostic significance between patients with chronic stable angina and patients with unstable angina

Autor: R, Florenciano-Sánchez, J A, Castillo-Moreno, E, Molina-Laborda, M, Jiménez-Pascual, P, García-Urruticoechea, S, Egea-Beneyto, J G, Sánchez-Villanueva, J, Ortega-Bernal
Rok vydání: 2001
Předmět:
Zdroj: Journal of the American College of Cardiology. 38(7)
ISSN: 0735-1097
Popis: The objective of this prospective study was to determine the differences in the prognostic significance of an exercise test (ET) that indicates a low risk of events (low-risk exercise test [LRET]) between patients with unstable angina (UA) and those with chronic stable angina (CSA).It is not known whether the prognostic significance of an LRET is influenced by the disease; that is the reason for performing exercise testing.All patients not presenting with high-risk criteria were submitted to a prognostic ET. The ET was performed by patients with CSA and patients with primary UA stabilized with medical therapy. Medical therapy was planned for all patients. A combined end point was defined as cardiac death, nonfatal acute myocardial infarction or hospital admission for UA. Multivariate analysis was performed to determine the independent predictors of events.Low-risk criteria were fulfilled by 105 patients with UA and 86 patients with CSA. The mean follow-up time was 347 +/- 229 days. The event rate was higher in the UA group than in the CSA group (28% vs. 9%, p = 0.001). The CSA group showed worse ET results. Performance of ET by patients with UA was the principal predictor of events (odds ratio 4.2, p = 0.0005).Among patients who underwent an LRET, those with UA had a rate of events significantly higher than that of patients with CSA, despite the worse results of ET in patients with CSA.
Databáze: OpenAIRE