Transplantation proceedings · 2010
Posttransplantation portal thrombosis secondary to splenorenal shunt persistence.
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Tallón Aguilar L, Jiménez Riera G, Suárez Artacho G, Marín Gómez L M, Serrano Díaz-Canedo J, Gómez Bravo M A
Аннотация
PURPOSE: The aim of this study was to analyze our experience with portal vein thrombosis after liver transplantation with a persistent splenorenal shunt.
MATERIALS AND METHODS: The study population included 780 liver transplantations from 1990 to 2009. We analyzed the existence of portal vein thrombosis in the immediate posttransplant period, selecting cases with a persistent splenorenal shunt requiring surgery.
RESULTS: The incidence of posttransplant portal vein thrombosis was 1.41% (n=11), of which 3 (27%) had a splenorenal shunt as a possible cause (0.38% of the total). Two cases required liver retransplantation due to portal vein thrombosis, and the third a thrombectomy. In all cases the shunt was also closed. During the early postoperative follow-up of these 3 patients, 2 needed repeat surgeries because of a new portal vein thrombosis (thrombectomy) in one and a bilioperitoneum in the other. After a median follow-up of 11 months, the patients showed a good evolution with no primary graft dysfunction.
DISCUSSION: The portal steal phenomenon secondary to persistence of a splenorenal shunt promotes the occurrence of portal vein thrombosis. Although it is a rare cause of graft dysfunction, it must be treated early, because it can lead to a small-for-size syndrome.
MATERIALS AND METHODS: The study population included 780 liver transplantations from 1990 to 2009. We analyzed the existence of portal vein thrombosis in the immediate posttransplant period, selecting cases with a persistent splenorenal shunt requiring surgery.
RESULTS: The incidence of posttransplant portal vein thrombosis was 1.41% (n=11), of which 3 (27%) had a splenorenal shunt as a possible cause (0.38% of the total). Two cases required liver retransplantation due to portal vein thrombosis, and the third a thrombectomy. In all cases the shunt was also closed. During the early postoperative follow-up of these 3 patients, 2 needed repeat surgeries because of a new portal vein thrombosis (thrombectomy) in one and a bilioperitoneum in the other. After a median follow-up of 11 months, the patients showed a good evolution with no primary graft dysfunction.
DISCUSSION: The portal steal phenomenon secondary to persistence of a splenorenal shunt promotes the occurrence of portal vein thrombosis. Although it is a rare cause of graft dysfunction, it must be treated early, because it can lead to a small-for-size syndrome.