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15 August 1995 | Volume 123 Issue 4 | Pages 280-287
Purpose: To compare the effect of endoscopic ligation with that of sclerotherapy in the treatment of patients with bleeding esophageal varices.
Data Sources: Strategies to identify published and unpublished research included searches of computerized bibliographic and scientific citations, review of citations in relevant primary articles, searches of services providing information on unpublished studies, contact with primary investigators and the ligation equipment manufacturer, and review of proceedings from pertinent scientific meetings.
Study Selection: From 158 potentially relevant articles, duplicate independent review identified 7 relevant randomized trials that compared endoscopic ligation with sclerotherapy for the treatment of patients with bleeding esophageal varices.
Independent, duplicate data abstraction of the population, intervention, outcome, and methodologic quality of the trials was done.
Data Synthesis: Ligation therapy compared with sclerotherapy reduced the rebleeding rate (odds ratio, 0.52 [95% CI, 0.37 to 0.74]), the mortality rate (odds ratio, 0.67 [CI, 0.46 to 0.98]), and the rate of death due to bleeding (odds ratio, 0.49 [CI, 0.24 to 0.996]). Four patients would need to be treated with ligation instead of sclerotherapy to avert one rebleeding episode, and 10 would need to be treated with ligation instead of sclerotherapy to prevent one death. Esophageal strictures occurred less frequently with ligation (odds ratio, 0.10 [CI, 0.03 to 0.29]), but no significant differences were seen between treatments for pulmonary infections or bacterial peritonitis. Additionally, the number of endoscopic treatment sessions required to achieve variceal obliteration was lower with ligation than with sclerotherapy.
Conclusions: On the basis of lower rates of rebleeding, mortality, and complications and the need for fewer endoscopic treatments, ligation should be considered the endoscopic treatment of choice for patients with esophageal variceal bleeding.
Author and Article Information
From the University of Southern California School of Medicine, Los Angeles, California. McMaster University, Hamilton, Ontario, Canada.
REVIEW
Endoscopic Ligation Compared with Sclerotherapy for Treatment of Esophageal Variceal Bleeding
A Meta-Analysis
Requests for Reprints: Loren Laine, MD, Gastroenterology Division (LAC 12-137), Department of Medicine, University of Southern California School of Medicine, 2025 Zonal Avenue, Los Angeles, CA 90033.
Acknowledgments: The authors thank the authors of the primary studies for their collaboration.
Grant Support: Dr. Cook is a Career Scientist of the Ontario Ministry of Health.
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