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  • Title: Complete occlusion of the left main coronary artery and the importance of coronary collateral circulation.
    Author: Frye RL, Gura GM, Chesebro JH, Ritman EL.
    Journal: Mayo Clin Proc; 1977 Nov; 52(11):742-5. PubMed ID: 926851.
    Abstract:
    Study of four patients who survived complete occlusion of the left main coronary artery forms the basis of 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 two patients where measurement was possible. The peak rate of systolic wall thickening by roentgen videometry in anterior left ventricular segments was normal in one 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.
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