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The Annals of Thoracic Surgery, Vol 37, 473-478, Copyright © 1984 by The Society of Thoracic Surgeons
DA Murphy, JM Craver and SB King 3d
The most common cause of acute myocardial ischemia following percutaneous
transluminal coronary angioplasty is coronary dissection, which
characteristically remains localized to the site of balloon dilation. In
this article, however, we report on 4 patients in whom percutaneous
transluminal coronary angioplasty was complicated by coronary artery
dissection extending distally beyond the site of anticipated vein graft
anastomosis. Intraoperative diagnosis of distal coronary dissection is
suggested by a characteristic appearance of the artery and confirmed by the
finding of true and false lumens at the time of coronary arteriotomy.
Successful revascularization is achieved by anastomosis of a vein graft to
the true lumen with reapproximation of the dissected arterial layers.
Proximal coronary artery ligation in this setting is unnecessary.
ARTICLES
Distal coronary artery dissection following percutaneous transluminal coronary angioplasty
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