RESUMEN
Portal hypertension (PH) was defined as an increase in portal pressure caused by various etiologies. The formation of portosystemic collateral circulation was a compensatory form of PH. Gastrointestinal varices were one of the clinical manifestations of PH, and which clould be broadly divided into esophageal varices (EV), gastric varices (GV) and ectopic varices (EcV). At present, it is found that EcV has difficulty in diagnosis, large amount of bleeding, difficulty in hemostasis and poor prognosis. So far, the study of EcV is very limited. There was no guideline and expert consensus on EcV treatment. This review will focus on the epidemiological features of EcV and the research status of endoscopic treatment.
RESUMEN
Portal hypertension can lead to development of new veins, called collateral vessels in the esophagus, stomach, abdominal wall, rectum and so on. In particular, collateral vessels located in other site than the gastroesophageal region are defined as ectopic varices. These varices are fragile and can rupture easily, resulting in a large amount of blood loss that may become serious and occasionally result in death. We experienced a case of massive rectal variceal bleeding after cross-clamping of the inferior vena cava and hepatic portal vein during the living donor liver transplantation in patients who had no history of rectal variceal bleeding. Our case suggests that acute intraoperative hemorrhage from an ectopic varix should be a consideration before liver transplantation.