Key result
Treadmill exercise testing induced coronary artery spasm, evidenced by angina and ST-segment elevation, in 7 patients with variant angina without significant coronary stenoses.
Why the study?
Does treadmill exercise testing induce coronary artery spasm in patients with variant angina?
Population
n=7 patients with typical variant angina without coronary stenoses greater than 50%
Design
Case_series
Authors
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May provoke spasm during exercise testing in variant angina; leaves open diagnostic role pending larger studies.
Observational (n=7)
Does treadmill exercise testing induce coronary artery spasm in patients with variant angina?
The study demonstrates that coronary artery spasm can be induced by exercise in patients with variant angina, evidenced by ST-segment elevation and thallium perfusion defects.
Waters et al. (1979) conducted an observational in Variant angina (n=7). Treadmill exercise testing vs. Rest was evaluated on Angina and ST-segment elevation. Treadmill exercise testing induced coronary artery spasm, evidenced by angina and ST-segment elevation, in 7 patients with variant angina without significant coronary stenoses.
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