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Cited by 398

The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.

Coronary Endothelial Dysfunction in Humans Is Associated With Myocardial Perfusion Defects

Hasdai, David, Gibbons, Raymond J., Holmes, David R., Higano, Stuart T., Lerman, Amir·1997·Circulation

Abstract

Background Coronary endothelial dysfunction may occur in patients with minimally obstructive coronary artery disease and angina, and potentially may cause myocardial ischemia. Methods and Results Coronary endothelium-dependent vasodilation was examined in patients with angina and <50% coronary artery diameter (CAD) stenosis by selectively infusing acetylcholine (10 −6 mol/L to 10 −4 mol/L) into the left anterior descending coronary artery (LAD). Percent change in CAD (%ΔCAD) was measured by quantitative coronary angiography, and percent change in coronary blood flow (%ΔCBF) was calculated using intracoronary flow Doppler. Coronary endothelium-independent vasodilation was examined using intracoronary adenosine and nitroglycerin. 99m Tc sestamibi was injected intravenously just prior to the infusion of the highest dose of acetylcholine. Patients were divided blindly into three groups: Perfusion defects in non-LAD territory (group 1, n=6), no perfusion defects (group 2, n=7), and perfusion defects in the LAD territory (group 3, n=7). All patients had intact endothelium-independent vasodilation. In group 1, perfusion defects outside the LAD territory reflected an increase in %ΔCAD and %ΔCBF by 24±5% and 241±46% in the LAD. In group 2, %ΔCAD decreased by 26±5%, but %ΔCBF increased by 54±17%. In group 3, perfusion defects were within the LAD territory, reflecting a decrease in %ΔCAD and %ΔCBF by 35±5% and 51±14%, respectively. Conclusions This study demonstrates that coronary endothelial dysfunction in humans may be temporally associated with myocardial perfusion defects and supports a role for the coronary epicardial and microcirculation endothelium in regulating myocardial perfusion. Myocardial ischemia may occur in humans with impaired endothelium-dependent coronary flow reserve of the coronary epicardial and microcirculation.

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Metadata

Authors
Hasdai, D., Gibbons, R. J., Holmes, D. R., Higano, S. T., & Lerman, A.
Venue
Circulation
Published
1997-11-18
Volume
96
Issue
10
Pages
3390-3395
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W1988516817
Cited by
398
References
27
FWCI
19.27
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Coronary Endothelial Dysfunction in Humans Is Associated With Myocardial Perfusion Defects. https://app.cochat.ai/papers/10.1161/01.cir.96.10.3390
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Hasdai, D., Gibbons, R. J., Holmes, D. R., Higano, S. T., & Lerman, A. (1997). Coronary Endothelial Dysfunction in Humans Is Associated With Myocardial Perfusion Defects. Circulation. https://doi.org/10.1161/01.cir.96.10.3390

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