title: Self-established porto-caval and porto-pulmonary shunts in mechanically induced portal hypertension. An experimental study.
abstract: Portal hypertension was mechanically induced in rats by partial constriction of the portal vein. Angiography revealed the spontaneous development of porto-systemic and porto-pulmonary shunts in all hypertensive animals. A coincident decompression of the portal system was recorded. Release of the portal vein constriction led to disappearance of the collaterals in most of the experimental animals.
mesh_terms: D000818:Animals; D003097:Collateral Circulation; D003250:Constriction; D005260:Female; D006975:Hypertension, Portal / Q000503:physiopathology*; D008026:Ligation; D011168:Portal System / Q000000981:diagnostic imaging; D011169:Portal Vein / Q000601:surgery; D011312:Pressure; D011667:Pulmonary Veins / Q000000981:diagnostic imaging; D011859:Radiography; D051381:Rats; D013156:Splenectomy; D013162:Splenic Vein / Q000000981:diagnostic imaging; D014684:Venae Cavae / Q000000981:diagnostic imaging