SIGNIFICANCE OF ANGIOGRAPHIC ABSENCE OF LEFT ANTERIOR DESCENDING CORONARY ARTERY IN A LEFT VENTRICLE WITH INTACT ANTERIOR WALL |
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Authors: | Sabbagh Adib H Schocket Lee I Dexter Richard L Fernandez Jose J O'Hare James E |
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Institution: | Department of Surgery, Tucson Medical Center, and St. Mary's Hospital and Health Center, Tucson, Arizona. |
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Abstract: | Fifteen patients having total occlusion of the proximal left anterior descending coronary artery were studied. All fifteen had normal left ventricular anterior walls. The electrocardiogram was normal in eight patients; old inferior wall infarction was evident in one; anterior ischemia in five; and left anterior hemiblock in one. Collateral circulation was found in twelve patients (80%). These findings suggest that an angiographically non-visualized left anterior descending (LAD) vessel is patent and bypassable in patients where the anterior ventricular wall is intact, thus representing an additional criterion for aortocoronary bypass surgery. |
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