Meta-analysis: the Effect of Lactobacillus Supplementation on Helicobacter pylori Eradication Rates and Side Effects during Treatment

Choi, Ju Young; Shim, Ki Nam; Kong, Kyoung Ae; Kwon, Kyoung Joo; Song, Eun Mi; Kim, Seong Eun; Jung, Hye Kyung; Jung, Sung Ae

Abstract

BACKGROUND/AIMS
Helicobacter pylori (H. pylori) is causally associated with gastritis and peptic ulcer diseases. Recent data have demonstrated that triple therapy with amoxicillin, clarithromycin, and a proton pump inhibitor has an eradication rate of only 74~76% and new therapeutic protocols may be necessary. The aim of this study was to investigate the effects of Lactobacillus as supplementation to anti-H. pylori regimens on H. pylori eradication rates and therapy-associated side effects.
MATERIALS AND METHODS
The PubMed, Medline and Korean Medical Database were searched in January 2012, with no language restrictions, for randomized controlled trials; additional references were obtained from reviewed articles. We included trials comparing Lactobacillus supplementation to placebo or no treatment during anti-H. pylori regimens. Meta-analysis was performed with Review Manager.
RESULTS
Eleven trials involving a total of 1,107 participants met the inclusion criteria. Compared with placebo or no intervention, Lactobacillus given along with anti-H. pylori regimens significantly increased the eradication rate [84.7% vs. 78.8%, odds ratio (OR) 1.75, 95% confidence interval (CI) 1.26~2.42] and reduced the risk of overall H. pylori therapy related adverse effects (35.4% vs. 48.6%, OR 0.56, 95% CI 0.38~0.81), particularly of diarrhea (7.5% vs. 20.6%, OR 0.31, 95% CI 0.18~0.54), bloating (19.2% vs. 29.9%, OR 0.53, 95% CI 0.32~0.88) and taste disturbance (17.6% vs. 34.8%, OR 0.37, 95% CI 0.21~0.64). There were no significant differences between groups in the risk of other adverse effects.
CONCLUSIONS
Our review suggests that supplementation with Lactobacilli could be effective in increasing eradication rates of anti-H. pylori therapy. Furthermore, Lactobacilli showed a positive impact on some H. pylori therapy-related side effects, particularly diarrhea, bloating and taste disturbance.