Authors: Amit Prasad Zhong Qian David Kirsch Marna Eissa Pavan Narra Jorge Lopera Carmen G Espinoza Wifrido Castaneda
Publish Date: 2007/10/10
Volume: 31, Issue: 1, Pages: 158-163
Abstract
Twelve saphenous veins of 6 dogs were percutaneously ablated with hot contrast medium In all animals ablation was performed in the vein of one leg followed by ablation in the contralateral side 1 month later An occlusion balloon catheter was placed in the infragenicular segment of the saphenous vein via a jugular access to prevent unwanted thermal effects on the nontarget segment of the saphenous vein After inflation of the balloon 10 ml of hot contrast medium was injected under fluoroscopic control through a sheath placed in the saphenous vein above the ankle A second 10 ml injection of hot contrast medium was made after 5 min in each vessel Venographic followup of the ablated veins was performed at 1 month n = 12 and 2 months n = 6Followup venograms showed that all ablated venous segments were occluded at 1 month In 6 veins which were followed up to 2 months 4 66 remained occluded 1 16 was partially patent and the remaining vein 16 was completely patent In these latter 2 cases an inadequate amount of hot contrast was delivered to the lumen due to a closed balloon catheter downstream which did not allow contrast to displace blood within the vessel
Keywords: