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European Journal of Cardio-Thoracic Surgery, Vol 11, 857-864, Copyright © 1997 by European Association for Cardio-thoracic Surgery

ARTICLES

Surgical angioplasty of the left main coronary artery

R Dion, B Elias, G El Khoury, P Noirhomme, R Verhelst and C Hanet
Department of Cardiovascular and Thoracic Surgery, Cliniques Universitaires Saint-Luc, Brussels, Belgium.

OBJECTIVE: The conventional surgical treatment of isolated critical stenosis of the left main coronary artery (LMCA) leads to the definitive occlusion of LMCA, restores only a retrograde perfusion to a rather extensive myocardial area and consumes bypass material. Direct surgical angioplasty avoids these inconveniences. METHODS: Between June 1985 and August 1996, 49 surgical angioplasties have been performed in 47 patients. LMCA was approached posteriorly in the first 11 procedures, and an anterior approach was preferred in the last 38 because of better exposure. The onlay patch consisted of saphenous vein in 37 cases; pericardium was used in 12 cases, and only for ostial stenosis. RESULTS: No technical failure occurred in the last 28 cases. 44 procedures, (90%), succeeded, but 1 patient (2.3%) died later of a massive air embolism, and 2 patients needed conventional CABG after 3 and 5 months, respectively. The 35 survivors still benefiting from a successful LMCA angioplasty on the long term are free of ischemia after a mean follow-up of 75 months (2-136). Angiographic restudy was obtained in 30 patients (70%) at an average of 38 months and revealed an excellent result in 26 (87%). In 10 patients, a late angiographic restudy at an average of 71 months (32-119) still revealed a perfect result. CONCLUSION: Provided that well-defined contra-indications (involvement of the distal bifurcation, heavy calcification) are respected, LMCA surgical angioplasty deserves a place in the array of surgical strategies.


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