Background: Non-selective beta-blockers (NSBBs) are recommended for prophylaxis of first variceal bleeding in patients of cirrhosis with large esophageal varices. However, the data is conflicting whether NSBBs can also prevent growth of small esophageal varices to large size.
Aim: To perform a meta-analysis of the randomized clinical trials comparing NSBBs with placebo for prevention of development of large esophageal varices in patients of cirrhosis with small esophageal varices.
Methods: The PubMed, EMBASE, Science Direct, and Cochrane library databases were searched for relevant papers. A meta-analysis was performed using risk ratios (RRs) with 95% confidence interval (CI) as the effect sizes.
Results: Overall, 314 trials were initially retrieved from the database searches, of which five randomized controlled trials were included in the meta-analysis. The incidence of development of large varices (RR = 0.91, 95%CI: 0.29-2.86; = 0.87) was similar between NSBB and placebo groups. However, the heterogeneity among studies was significant ( < 0.01) with an of 93%. The incidences of first variceal bleeding (RR = 0.72, 95%CI: 0.25-2.12; = 0.55) and death (RR = 0.76, 95%CI: 0.50-1.15; = 0.19) were also similar between NSBB and placebo groups; with no heterogeneity. The incidence of adverse events was significantly higher in the NSBB group compared with the placebo group (RR = 4.66, 95%CI: 1.36-15.91; = 0.01).
Conclusion: The results of this meta-analysis indicate that NSBBs are not effective in preventing growth of small varices and may lead to significant adverse effects. Hence, NSBBs should not be recommended for cirrhotic patients with small varices.
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| http://dx.doi.org/10.1016/j.jceh.2017.09.003 | DOI Listing |
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