PTCA, thrombolysis or atherectomy: rational treatment of recently occluded saphenous vein grafts.
Recently occluded saphenous vein grafts (SVG) contain abundant thrombus. Distal embolization and myocardial infarction often occur when recanalization of such SVG is attempted. In 80 patients with occluded SVG, we employed transcatheter devices to lyse, compress or extract thrombus. Primary treatment for these SVG was performed in the following manner; PTCA 29, intragraft urokinase 12, TEC atherectomy 39. Following urokinase or atherectomy, adjunctive PTCA was performed to diminish the residual stenosis. All patients had class III or IV angina. Clinically, SVG occlusions were 3 days to 3 months old. TIMI flow was grade 0, and occlusion length was greater than 6 cm for all SVG. Each strategy resulted in a similar procedure success rate. However, when used as a primary treatment, TEC may be associated with lower rates of distal embolization and myocardial infarction.[1]References
- PTCA, thrombolysis or atherectomy: rational treatment of recently occluded saphenous vein grafts. Mehta, S., Margolis, J.R., Moore, L., Pena, R. Indian heart journal. (1995) [Pubmed]
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