Key result
Aortocoronary bypass surgery resulted in 68% of patients becoming angina-free, with 46% of those having positive preoperative stress tests converting to negative postoperatively.
Why the study?
Does graded exercise treadmill testing objectively evaluate ischemic changes and angina relief in patients after aortocoronary bypass surgery?
Population
123 patients who had undergone aortocoronary bypass surgery, all with preoperative angina.
Comparison
Graded exercise treadmill tests performed… vs Preoperative graded exercise treadmill tests and…
Design
Cohort
Authors
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Supports objective post-bypass assessment via stress testing; leaves open whether routine use alters management in asymptomatic patients with residual ischemia.
Cohort (n=123)
Does graded exercise treadmill testing objectively evaluate ischemic changes and angina relief in patients after aortocoronary bypass surgery?
Exercise stress testing objectively substantiates ischemic improvement after bypass surgery and reveals that many patients with residual ischemia postoperatively are asymptomatic.
Bartel et al. (1973) conducted a cohort in Angina / Aortocoronary bypass surgery (n=123). Aortocoronary bypass surgery vs. Preoperative state was evaluated on Angina symptoms and ST-segment changes on exercise treadmill test. Aortocoronary bypass surgery resulted in 68% of patients becoming angina-free, with 46% of those having positive preoperative stress tests converting to negative postoperatively.
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