Division of Gastroenterology, Department of Medicine, Toronto General Hospital, University of Toronto, Toronto, ON, Canada. These authors contributed equally: Danielle Adebayo, Shuet Fong Neong.
Am J Gastroenterol. 2019 Jan;114(1):40-47. doi: 10.1038/s41395-018-0185-6.
Ascites, a common complication of liver cirrhosis, eventually becomes refractory to diuretic therapy and sodium restriction in ∼10% of patients. Multiple pathogenetic factors are involved in the development of refractory ascites, which ultimately lead to renal hypoperfusion and avid sodium retention. Therefore, renal dysfunction commonly accompanies refractory ascites. Management includes continuation of sodium restriction, which needs frequent reviews for adherence; and regular large volume paracentesis of 5 L or more with albumin infusions to prevent the development of paracentesis-induced circulatory dysfunction. In the appropriate patients with reasonable liver reserve, the insertion of a transjugular intrahepatic portosystemic stent shunt (TIPS) can be considered, especially if the patient is relatively young and has no previous hepatic encephalopathy or anatomical contraindications, and no past history of renal or cardiopulmonary disease. Response to TIPS with ascites clearance can lead to nutritional improvement. Devices such as an automated low-flow ascites pump may be available in the future for ascites treatment. Patients with refractory ascites and poor liver function and/or renal dysfunction, should be referred for liver transplant, as this will eliminate the portal hypertension and liver dysfunction. Renal dysfunction prior to liver transplant largely improves after transplant without affecting post-transplant survival.
腹水是肝硬化的常见并发症,约有 10%的患者最终对利尿剂治疗和钠限制产生耐药。难治性腹水的发生涉及多种发病机制,最终导致肾灌注不足和钠的过度潴留。因此,肾功能不全常伴有难治性腹水。治疗包括继续限制钠的摄入,需要经常检查以确保患者的依从性;定期进行大量腹水抽放术(每次 5 L 或以上)并输注白蛋白,以预防穿刺后循环功能障碍的发生。对于有合理肝储备的合适患者,可以考虑插入经颈静脉肝内门体分流术(TIPS),特别是如果患者相对年轻,没有既往肝性脑病或解剖学禁忌证,也没有既往的肾脏或心肺疾病病史。对腹水清除有反应的 TIPS 可导致营养状况改善。未来可能会有自动低流量腹水泵等设备用于腹水治疗。对于难治性腹水且肝功能和/或肾功能差的患者,应转至肝移植,因为这将消除门脉高压和肝功能障碍。肝移植前的肾功能不全在移植后大多会改善,而不会影响移植后的生存率。