Division of Gastroenterology and Hepatology, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Canada.
Clin Mol Hepatol. 2023 Jan;29(1):16-32. doi: 10.3350/cmh.2022.0104. Epub 2022 Jun 9.
The development of refractory ascites in approximately 10% of patients with decompensated cirrhosis heralds the progression to a more advanced stage of cirrhosis. Its pathogenesis is related to significant hemodynamic changes, initiated by portal hypertension, but ultimately leading to renal hypoperfusion and avid sodium retention. Inflammation can also contribute to the pathogenesis of refractory ascites by causing portal microthrombi, perpetuating the portal hypertension. Many complications accompany the development of refractory ascites, but renal dysfunction is most common. Management starts with 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 paracentesisinduced circulatory dysfunction. Albumin infusions independent of paracentesis may have a role in the management of these patients. The insertion of a covered, smaller diameter, transjugular intrahepatic porto-systemic stent shunt (TIPS) in the appropriate patients with reasonable liver reserve can bring about improvement in quality of life and improved survival after ascites clearance. Devices such as an automated low-flow ascites pump may be available in the future for ascites treatment. Patients with refractory ascites should be referred for liver transplant, as their prognosis is poor. In patients with refractory ascites and concomitant chronic kidney disease of more than stage 3b, assessment should be referred for dual liver-kidney transplants. In patients with very advanced cirrhosis not suitable for any definitive treatment for ascites control, palliative care should be involved to improve the quality of life of these patients.
大约 10%的肝硬化失代偿患者会发展为难治性腹水,这预示着其病情向更晚期肝硬化进展。其发病机制与显著的血流动力学变化有关,这些变化由门脉高压引起,但最终导致肾灌注不足和钠的过度潴留。炎症也可以通过引起门脉微血栓来促进难治性腹水的发病机制,从而使门脉高压持续存在。难治性腹水的发生常伴有多种并发症,但肾功能不全最为常见。其治疗始于继续限制钠的摄入,这需要频繁评估患者的依从性;并定期进行 5L 或以上的大量腹腔穿刺术,并输注白蛋白,以防止发生穿刺相关的循环功能障碍。独立于腹腔穿刺术输注白蛋白可能对这些患者的治疗有作用。对于具有合理肝储备的合适患者,插入带覆盖物的、较小直径的经颈静脉肝内门体分流术(TIPS)可以改善生活质量并在清除腹水后提高生存率。未来可能会有自动化低流量腹水泵等设备用于腹水治疗。难治性腹水患者应转至肝移植中心,因为其预后较差。对于难治性腹水合并 3b 期以上慢性肾脏病的患者,应评估是否适合进行肝肾联合移植。对于不适合任何明确腹水控制治疗的非常晚期肝硬化患者,应进行姑息治疗,以提高这些患者的生活质量。