Division of Gastroenterology and Hepatology, University of Virginia, Charlottesville, Virginia, USA.
Am J Gastroenterol. 2012 Mar;107(3):428-30. doi: 10.1038/ajg.2011.466.
Non-selective beta-blockers have been a cornerstone of therapy for prevention of esophageal variceal bleeding in cirrhosis patients for more than two decades. When lowering the hepatic vein portal pressure gradient (HVPG) below 12 mm Hg or decreasing the pressure by 20% from baseline, these drugs are of proven benefit in reducing variceal bleeding and improving survival in this patient population. The recent work by Hendández-Gea et al., suggests that initiation of the beta-blocker nadolol in cirrhosis patients with high-risk varices can delay or prevent the first occurrence of clinically evident ascites. This finding comes with some caveats, however. The beneficial effect was only seen in patients who had an improvement by 10% or more from baseline HVPG pressure (only 51% of the treated patients in this study). This class of medications has some risk and tolerance issues, and many patients do not respond, even when the heart rate is optimally decreased. Despite this, the use of beta-blockers may be beneficial in the primary prevention of the formation of ascites and further decompensation of cirrhosis.
非选择性β受体阻滞剂作为治疗肝硬化食管静脉曲张出血的基石已经超过二十年。当将肝静脉门静脉压力梯度(HVPG)降低至 12mmHg 以下或比基线水平降低 20%时,这些药物可有效降低静脉曲张出血风险并改善该患者人群的生存率。最近,Hendández-Gea 等人的研究表明,在具有高危静脉曲张的肝硬化患者中启动β受体阻滞剂纳多洛尔治疗可以延迟或预防首次出现临床明显腹水。然而,这一发现存在一些局限性。仅在 HVPG 压力基线水平改善 10%或以上的患者中观察到有益效果(本研究中仅 51%的治疗患者)。此类药物存在一些风险和耐受性问题,许多患者即使心率得到最佳降低也没有反应。尽管如此,β受体阻滞剂的使用可能有益于预防腹水形成和肝硬化进一步失代偿。