portosystemicadj.
/ˌpɔːtə(ʊ)sᵻˈstiːmɪk/, /ˌpɔːtə(ʊ)sᵻˈstɛmɪk/, U.S. /ˈˌpɔrdoʊsəˈstɛmɪk/ Medicine.
Of, relating to, or connecting the portal and systemic venous systems.
ΘΚΠ
the world > health and disease > healing > medical treatment > surgery > operations on specific parts or conditions > [adjective] > operations on veins
portacaval1907
portosystemic1939
1939 Amer. Jrnl. Surg. 43 39/2 Emboli from the alimentary canal are almost certain to be lodged at the portosystemic junction in the liver.
1954 Amer. Jrnl. Med. 16 437/2 Numerous observations..have shown that the presence of detectable collateral portasystemic venous communications (e.g. esophageal varix, dilatation of abdominal veins and hemorrhoids) is not necessarily pathognomonic of existing portal hypertension.
1976 Lancet 11 Dec. 1268/2 An exploration was attempted..but was quickly abandoned because of massive blood-loss due to extensive portosystemic shunts and bleeding tendency.
1991 Chinese Med. Jrnl. 104 186/1 Clinically, lowering the portal pressure either generally by portosystemic shunt or regionally by selective shunt or porto-azygous disconnection could often control the bleeding.
This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022).
<
adj.1939