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New type of asymptomatic congenital portosystemic shunt.
Clin J Gastroenterol
February 2009
Department of Diagnostic and Molecular Imaging, Interventional Radiology and Radiation Therapy, University of Rome "Tor Vergata", 81 Oxford Street, 00133, Rome, Italy.
Congenital extrahepatic portosystemic shunt (CEPS) is an extremely rare anomaly. In these malformations splanchnic blood bypasses the liver and drains into the systemic circulation through the inferior vena cava (IVC) or the left renal vein (LRV). Extrahepatic shunts may be divided into type 1 [end-to-side mesenterico-caval fistula with congenital absence of the portal vein (PV)] and type 2 (partial portocaval shunt caused by side-to-side mesenterico-caval fistula with normal or hypoplasic PV).
View Article and Find Full Text PDFCongenital extrahepatic portocaval shunts--the Abernethy malformation.
J Pediatr Surg
March 1997
Department of Pediatric Surgery, King's College Hospital, London, England.
The first account of an absent portal vein and a congenital mesenterico-caval shunt was given by John Abernethy in 1793. Five new cases of congenital extrahepatic portocaval shunts are described in this report. One end-to-side shunt with congenital absence of the portal vein (type 1 shunt) is the 13th case in the literature.
View Article and Find Full Text PDFHepatic reticuloendothelial function was measured in 6 experimental groups of rats with various portasystemic shunts or total liver arterialization by computer calculation of the hepatic uptake rate of intravenously injected 99mTc-sulphur colloid. Marked reduction of the hepatic reticuloendothelial system (RES) function was found both 1 and 3 weeks after the construction of a mesentericocaval or conventional end-to-side portacaval shunt. Hepatic RES function was also lowered both 1 and 3 weeks after a modified portacaval shunt, but the reduction was much less pronounced.
View Article and Find Full Text PDFIn a prospective study from 1972 to 1982, 38 patients with bleeding oesophageal varices and relatively good liver function were treated by semi-elective or emergent shunt 2-4 weeks after admission. There were no deaths within 3 months of surgery. This constituted 30% of the total 125 patients admitted with bleeding varices during that period.
View Article and Find Full Text PDF[Experimental porto-systemic diversion in the rat: a comparative analysis of technics and results].
Ann Osp Maria Vittoria Torino
November 1986
A number of techniques for performing portacaval end-to-side and side-to-side pancreaticoduodenal and mesenterico-caval shunts in rats are described. These shunts, transposition and arterialization are valuable objects for training in microvascular surgery. Effects of shunts, liver function, hemodynamics, metabolic and neurological changes related to portal flow, liver metabolism, and portal pressure are compared.
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