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European Journal of Cardio-Thoracic Surgery, Vol 5, 326-329, Copyright © 1991 by European Association for Cardio-thoracic Surgery

ARTICLES

PTCA of the left main stem following protective coronary artery bypass grafting

HJ Rupprecht, H Oelert, S Trautmann, T Pop, S Iversen, R Erbel and J Meyer
Second Medical Clinic, Johannes Gutenberg University, Mainz, FRG.

Percutaneous transluminal coronary angioplasty (PTCA) was performed in 14 patients with significant left main stem stenosis following protective coronary artery bypass grafting (CABG). The procedure was successful in 13/14 patients (93%), achieving a decrease in mean diameter stenosis from 74% +/- 7% to 31% +/- 12% (P less than 0.01). Accordingly, the absolute stenosis diameter increased from 0.9 mm +/- 0.3 mm to 2.4 mm +/- 0.5 mm (P less than 0.01). Dissection of the left main stem artery and a transient significant fall of blood pressure each occurred in one patient. No other serious complications were noted. Eight of 13 patients (62%) with successful PTCA underwent control angiography. Restenosis had occurred in 3 of 8 patients (38%) with total occlusion of the left main stem in 1 patient. All bypass grafts were found to be patent at follow-up. Clinical evaluation in all 14 patients revealed no serious events (death, myocardial infarction, repeat revascularization procedure) during a mean follow-up period of 27 months (range 6-39 months). PTCA of the left main stem following CABG can be considered a relatively safe and effective procedure with a marked restenosis-rate but beyond that, an uncomplicated long-term follow-up.




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Copyright © 1991 European Association for Cardio-Thoracic Surgery. Published by Elsevier. All rights reserved.