Valla D
Service d'hépato-gastroentérologie, groupe hospitalier Pitié-Salpêtrière, Paris.
Rev Prat. 1990 Jun 1;40(16):1479-82.
Portal hypertension may be due to a suprahepatic or infrahepatic block. Suprahepatic blocks result in Budd-Chiari syndrome. Their principal cause is myeloproliferative syndromes and invasion of the hepatic veins by a tumour. Their main manifestations are ascites and liver enlargement. Treatment consists of re-establishing the hepatofugal drainage. Infrahepatic blocks are due to obstruction of the portal vein, either by thrombosis facilitated by thrombogenic diseases, or by a tumour. Their main consequences are gastrointestinal hemorrhages. Treatment consists of preventing the rupture of oesophageal varices.
门静脉高压可能是由于肝上或肝下阻塞所致。肝上阻塞会导致布加综合征。其主要病因是骨髓增殖性综合征以及肿瘤侵犯肝静脉。其主要表现为腹水和肝脏肿大。治疗方法是重建肝静脉逆流。肝下阻塞是由于门静脉阻塞引起的，这可能是由血栓形成性疾病促成的血栓形成，也可能是由肿瘤引起的。其主要后果是胃肠道出血。治疗方法是预防食管静脉曲张破裂。
