Hanna S S, Warren W D, Galambos J T, Millikan W J
Can Med Assoc J. 1981 Jan 1;124(1):42-7.
Patients who have previously bled from esophageal varices should have their hepatic function, neurologic status and nutritional status evaluated and should be examined for ascites before elective variceal decompression is done to prevent recurrent variceal hemorrhage. The two most important procedures used for this evaluation are liver biopsy and visceral angiography. If the liver biopsy reveals little or no necroinflammatory activity, shunt surgery is indicated. For patients with moderate or severe necroinflammatory activity, surgery is delayed until the inflammation subsides. The central aim of visceral angiography is to determine whether the patient has hepatopetal or hepatofugal portal venous flow. Patients with hepatopetal flow are treated with a selective distal splenorenal shunt. Those with hepatofugal flow are managed with a total shunt, such as an interposition H-graft portacaval or mesocaval shunt.
既往有食管静脉曲张出血史的患者,在进行择期静脉曲张减压术以预防静脉曲张复发出血之前,应评估其肝功能、神经状态和营养状况,并检查是否有腹水。用于该评估的两个最重要的检查是肝活检和内脏血管造影。如果肝活检显示几乎没有或没有坏死性炎症活动,则表明适合进行分流手术。对于有中度或重度坏死性炎症活动的患者,手术应推迟至炎症消退。内脏血管造影的主要目的是确定患者是肝向性还是肝离性门静脉血流。肝向性血流的患者采用选择性远端脾肾分流术治疗。肝离性血流的患者采用全分流术治疗,如间置H型移植门腔分流术或肠系膜腔分流术。