Why the study?
Do risk factors influence the late recurrence of angina up to 4 years following myocardial revascularization?
Do risk factors influence the late recurrence of angina up to 4 years following myocardial revascularization?
Traditional risk factors may not statistically predict the late recurrence of angina 4 years after coronary bypass surgery, a timepoint at which 79% of patients remain symptom-free.
Answers are grounded in this paper and cite their sources.
Traditional risk factors may not predict late angina recurrence after revascularization; leaves open unidentified predictors in this cohort.
To assess the influence of risk factors on the recurrence of angina several years after myocardial revascularization, 316 patients were studied. We report that 249 patients obtained relief of angina from coronary bypass surgery and remained free of angina up to 4 years later. The remaining 67 patients experienced initial relief of angina 1 year following bypass surgery and then, subsequently, redeveloped angina 4 years postsurgery. There was no statistical difference in any risk factor between patients who remained free of angina after myocardial revascularization and those who developed angina. Of the total 316 patients, 79% were free of angina 4 years after coronary bypass surgery.
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Schackman et al. (1982) studied this question.
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