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  • Title: Endarterectomy of the left anterior descending and mainstem coronary arteries: a technique for reconstruction of inoperable arteries.
    Author: Parsonnet V, Gilbert L, Gielchinsky I, Bhaktan EK.
    Journal: Surgery; 1976 Dec; 80(6):662-73. PubMed ID: 1087472.
    Abstract:
    The proximal left anterior descending coronary artery (PLAD) is an area of predilection for such severe and diffuse calcific arteriosclerosis that reconstruction of these vessels often is impossible. The branches of this segment include the septal perforators, median artery, the left anterior descending coronary artery, and its first and second diagonal branches. Successful endarterectomy, therefore, would revascularize large areas of the left ventricle and interventricular septum. We have performed 45 such operations during the past 13 months. Following endarterectomy there are several methods of reconstructing the endarterectomized vessel, the preferable technique being the addition of a saphenous vein bypass to the endarterectomized segment. Patients selected for this operation were mostly in the fair (58%) and poor risk (42%) categories; there were no good risk patients. Diffuse arterial disease was the rule. The average ejection fraction was 0.48. The operation was successful with respect to graft patency, bypass flow rates, and symptomatic relief. The operative mortality rate in the entire group was 15%, including the 19 poor risk patients in six of whom elective preoperative use of an antra-aortic balloon pump was required. Most of the surviving patients (92%) were either symptom free or greatly improved. Only two patients were clinically unchanged. There was one late sudden death. This operation is indicated when there is extensive involvement of the life main, the proximal left anterior descending coronary artery and its major branches. It is the only possible way to revascularize otherwise inoperable arteries.
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