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Clinical efficacy and safety of lactulose for minimal hepatic encephalopathy: a meta-analysis.
MedLine Citation:
PMID:  21971378     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: To evaluate the clinical efficacy of lactulose in patients with minimal hepatic encephalopathy (MHE). METHODS: Randomized controlled trials (RCTs) comparing lactulose with placebo or with no intervention in the management of MHE that were conducted from January 1990 to July 2011 were searched from MEDLINE, EMBASE, SCI, Cochrane Controlled Trials Register, and China Biological Medicine Database. Studies with a Jadad score higher than 3 were included in the meta-analysis and evaluated using RevMan5.0 software for relative risk (RR) or weighted mean difference (WMD) with 95% confidence intervals (95% CI). Sensitivity analysis was performed on the ethnical differences and quality of the trials. Publication bias was observed using an inverted funnel plot. RESULTS: Nine studies with 434 patients were included in the meta-analysis. Compared with placebo or no intervention, lactulose significantly reduced the risk of no improvement in neuropsychological tests (RR: 0.52, 95% CI: 0.44-0.62, P<0.00001), the time required for the completion of the number connection test-A (WMD: -26.95, 95% CI: -37.81 to -16.10, P<0.00001), and the mean number of abnormal neuropsychological tests (WMD: -1.76, 95% CI: -1.96 to -1.56, P<0.00001). Furthermore, the meta-analysis also showed that lactulose prevented the progression to overt hepatic encephalopathy (RR: 0.17, 95% CI: 0.06-0.52, P=0.002), reduced blood ammonia levels (WMD: -9.89 µmol/l, 95% CI: -11.01 to -8.77 µmol/l, P<0.00001), and improve health-related quality of life (WMD: -6.05, 95% CI: -6.30 to -5.20, P<0.00001). However, no significant difference was observed in the mortality of patients with MHE (RR: 0.75, 95% CI: 0.21-2.72, P=0.66), and lactulose significantly increased the incidence of diarrhea (RR: 4.38, 95% CI: 1.35-14.25, P=0.01). CONCLUSION: Lactulose has significant beneficial effects for patients with MHE compared with placebo or no intervention.
Authors:
Ming Luo; Lei Li; Chen-Zheng Lu; Wu-Kui Cao
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-1
Journal Detail:
Title:  European journal of gastroenterology & hepatology     Volume:  -     ISSN:  1473-5687     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9000874     Medline TA:  Eur J Gastroenterol Hepatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
aGraduate School, Tianjin Medical University bDepartment of Hepatology cTianjin Liver Disease Institute, Tianjin Infection Disease Hospital, Tianjin, China.
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