Complete occlusion of the left main coronary artery and the importance of coronary collateral circulation

R. L. Frye, G. M. Gura, J. H. Chesebro, E. L. Ritman

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41 Scopus citations

Abstract

A study of 4 patients who survived complete occlusion of the left main coronary artery forms the basis for conclusions concerning the functional significance of coronary collateral circulation. Each of these patients had prominent collateral circulation from the right coronary artery. Global left ventricular function was maintained to the extent that congestive heart failure did not occur; the biplane ejection fraction was normal in the 2 patients where measurement was possible. The peak rate of systolic wall thickening by roentgen videometry in anterior left ventricular segments was normal in 1 patient and mild to moderately depressed in another. Experience with the patients described herein indicates that coronary collateral flow can provide critically needed circulatory support for the patient with coronary artery disease.

Original languageEnglish (US)
Pages (from-to)742-745
Number of pages4
JournalMayo Clinic proceedings
Volume52
Issue number11
StatePublished - Dec 1 1977

ASJC Scopus subject areas

  • Medicine(all)

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    Frye, R. L., Gura, G. M., Chesebro, J. H., & Ritman, E. L. (1977). Complete occlusion of the left main coronary artery and the importance of coronary collateral circulation. Mayo Clinic proceedings, 52(11), 742-745.