Key result
ECG response during exercise stress demonstrated 86% sensitivity but only 45% specificity in identifying patients with reduced coronary vasodilator reserve.
Population
45 patients with a history of chest pain, angiographically normal coronary arteries, and a negative…
Design
Cross-sectional
Authors
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Low specificity cautions against using exercise ECG to identify reduced coronary vasodilator reserve; hypothesis-generating for alternative ST-depression mechanisms.
Cross-Sectional (n=45)
Exercise ECG has low specificity for identifying reduced coronary vasodilator reserve in patients with chest pain and normal coronary angiograms, suggesting other mechanisms for ST depression in this population.
Camici et al. (1992) conducted a cross-sectional in Chest pain with angiographically normal coronary arteries (n=45). ECG response during exercise stress was evaluated on Sensitivity and specificity of ST segment depression during exercise stress for identifying reduced coronary vasodilator reserve. ECG response during exercise stress demonstrated 86% sensitivity but only 45% specificity in identifying patients with reduced coronary vasodilator reserve.
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