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  • Title: [Angioplasty of the ostium of the left coronary artery using a venous patch].
    Author: Bochenek A, Religa Z, Tomaszewski J, Wnuk-Wojnar A, Drzewiecki J, Reek C, Pietrzycki A, Spyt J.
    Journal: Kardiol Pol; 1992 Sep; 37(9):142-5. PubMed ID: 1479770.
    Abstract:
    Isolated critical ostial stenosis of the left main coronary artery (LMCA) without narrowing in the distal parts of coronary vessels is rather rare cause of angina. It was observed in 7 our patients: 5F and 2M aged 42-55 yrs (mean 47.5). Five of them were in unstable condition. In all of them a direct surgical angioplasty of the LMCA was performed. Cardiopulmonary bypass with moderate hypothermia were used in all patients. The LMCA was approached from behind. A curved incision was made into the right lateral aortic wall toward the LMCA. Care was taken to stay away from the commissure between the noncoronary and the left coronary cusp. The posterior aspect of the LMCA was incised across the stenosis and prolonged through bifurcation. A venous onlay patch was used to enlarge not only the LMCA but also the adjacent 2 cm of aortic incision, so as to give the LMCA ostium a funnel shape, which favors a homogeneous blood flow. The mean aortic cross clamping time was 46 min. The patients were easily weaned from cardiopulmonary bypass. The early and late results are good--all patients were discharged from the hospital free of symptoms. In 6 patients a perfect patency of the left main stem was documented during control coronarography. In our opinion direct surgical angioplasty of LMCA is better then the conventional surgical treatment because normal geometry of LMCA ostium and normal blood flow can be restored using this method.
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