title: Balloon catheter dilatation of stenotic renal artery anastomoses. Experiments in the pig.
abstract: Stenotic renal artery anastomoses were produced in pigs in order to investigate the effects of transluminal angioplasty. Six weeks after surgery unilateral dilatation with a modern balloon catheter was performed in 8 pigs. These animals were reexamined with angiography and pressure gradient recording 8 to 10 weeks after dilatation and with post-mortem angiography 8 to 10 weeks later. Only 2 arteries had minimal residual stenoses, while in 6 arteries the stenoses were completely eliminated. Microscopic examination showed thinning of the fibrotic vessel wall, with defects in the internal elastic lamina.
mesh_terms: D000800:Angioplasty, Balloon; D000818:Animals; D001794:Blood Pressure; D004195:Disease Models, Animal; D011859:Radiography; D012077:Renal Artery / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging*; D013552:Swine