Percutaneous production of renal artery lesions. Experiments in the pig.
Percutaneous, intraarterial traumatization of both renal arteries in 4 pigs using the stiff end of a guide-wire resulted in intimal lesions in 7 arteries. At repeat angiography healing was demonstrated in 4 of these arteries, suggesting that spontaneous restitution may be more common than usually believed. Balloon catheter dilatation of 2 stenotic segments initially increased the diameter of the stenoses but at repeat angiography both arteries were found to be occluded. Over-distension of the balloon in the renal artery resulted in pseudoaneurysm in one case and rupture in the other.
D000818:Animals; D000829:Animals, Domestic; D001012:Aorta, Abdominal / Q000000981:diagnostic imaging; D001794:Blood Pressure; D002404:Catheterization / Q000295:instrumentation; D008722:Methods; D008954:Models, Biological; D011859:Radiography; D012077:Renal Artery / Q000000981:diagnostic imaging* / Q000502:physiology; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging / Q000209:etiology*; D013552:Swine