Why the study?
What are the angiographic and hemodynamic determinants of ischemic ST-segment depression during adenosine thallium-201 scintigraphy in patients with coronary artery disease?
Population
65 consecutive patients with coronary artery disease who showed reversible perfusion defects during…
Design
Cross-sectional
Authors
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Identifies predictors of ST depression during adenosine testing; leaves open whether targeting collaterals or BP alters ischemia risk.
What are the angiographic and hemodynamic determinants of ischemic ST-segment depression during adenosine thallium-201 scintigraphy in patients with coronary artery disease?
Coronary collateral vessels, baseline systolic blood pressure, and adenosine-induced angina independently predict ischemic ST-segment depression during adenosine stress testing, supporting the mechanism of coronary collateral steal.
Nishimura et al. (1993) studied this question.
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