Wood R P, Shaw B W, Rikkers L F
Department of Surgery, University of Nebraska Medical Center, Omaha.
Surg Clin North Am. 1990 Apr;70(2):449-61. doi: 10.1016/s0039-6109(16)45091-7.
At the present time, liver transplantation must be considered among the treatment options for patients with variceal hemorrhage. For a significant percentage of variceal bleeders throughout the world, however, transplantation is not a viable option either because the patient is not an appropriate transplant candidate or because of the etiology of the patient's portal hypertension. Sclerotherapy and portosystemic shunts remain the mainstay of therapy for these patients. The survival rates with liver transplantation are superior to those reported for other therapies for variceal hemorrhage in patients who have moderate or severe liver disease in addition to variceal hemorrhage. Child's C patients whose variceal hemorrhage is controlled medically should be evaluated for transplantation and receive chronic sclerotherapy while they wait on the transplant list. If the variceal hemorrhage cannot be controlled medically in a transplant candidate, then the patient should undergo an emergency shunt procedure. The shunt of choice is a large-bore H-graft mesocaval or mesorenal shunt. This shunt effectively controls the acute hemorrhage, is relatively simple to perform, does not adversely impact on the subsequent liver transplant, and can simply be ligated after the transplant is completed. Patients who experience variceal hemorrhage as the only manifestation of their liver disease should be treated initially with endoscopic sclerotherapy. For that small group of patients who are either not candidates for sclerotherapy or who rebleed despite sclerotherapy, the choice of shunt or transplantation is presently a difficult one, because both therapies provide excellent results in this group of patients. The choice of therapy should be made on an individual basis and only after consultation with both transplant and shunt surgeons. If a shunt is chosen, we prefer the DSRS because it maintains hepatic portal perfusion in many patients and does not require dissection of the porta hepatis. The management of patients with a prior portosystemic shunt at the time of transplantation depends on the type of shunt and the duration of time between the shunt and the transplant. Shunts not involving the hepatic hilum have little adverse impact on the performance of the transplant. There are insufficient data to assess accurately the effect of a prior portacaval shunt on the transplant. However, our clinical experience and that of other transplant groups indicate that the transplantation of these patients is technically more difficult than that of patients with shunts not involving the hilum. With the availability of other shunting procedures that do not involve extensive dissection of the hepatic hilum, there is little role for either end-to-side or side-to-side portacaval shunts in patients who are potential liver transplant candidates.(ABSTRACT TRUNCATED AT 400 WORDS)
目前,对于静脉曲张出血患者,肝移植必须被视为治疗选择之一。然而,对于全球相当比例的静脉曲张出血患者而言,移植并非可行的选择,这要么是因为患者并非合适的移植候选人,要么是由于患者门静脉高压的病因。硬化疗法和门体分流术仍然是这些患者的主要治疗方法。对于除静脉曲张出血外还患有中度或重度肝病的患者,肝移植的生存率高于其他治疗静脉曲张出血的疗法所报告的生存率。静脉曲张出血通过药物控制的Child's C级患者,在等待移植名单期间应接受移植评估并接受长期硬化疗法。如果移植候选人的静脉曲张出血无法通过药物控制,那么患者应接受急诊分流手术。首选的分流术是大口径H型移植肠系膜上腔静脉分流术或肠系膜上静脉 - 肾静脉分流术。这种分流术能有效控制急性出血,操作相对简单,不会对后续的肝移植产生不利影响,并且在完成移植后可简单结扎。仅以静脉曲张出血作为肝病唯一表现的患者,应首先接受内镜硬化疗法治疗。对于那一小部分既不适合硬化疗法治疗,或尽管接受硬化疗法仍再次出血的患者,目前分流术或移植术的选择较为困难,因为这两种疗法在这组患者中都能取得良好效果。治疗方法的选择应基于个体情况,并仅在咨询移植外科医生和分流外科医生后做出。如果选择分流术,我们更倾向于远端脾肾分流术(DSRS),因为它能在许多患者中维持肝门静脉灌注,且无需解剖肝门。移植时曾接受过门体分流术的患者的管理取决于分流术的类型以及分流术与移植术之间的时间间隔。不涉及肝门的分流术对移植手术的影响较小。目前尚无足够数据准确评估既往门腔分流术对移植的影响。然而,我们的临床经验以及其他移植团队的经验表明,这些患者的移植手术在技术上比未涉及肝门分流术的患者更困难。鉴于有其他不涉及广泛解剖肝门的分流手术可供选择,对于潜在的肝移植候选人,端侧或侧侧门腔分流术几乎没有作用。(摘要截选至400字)