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Systematic review

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Systematic review with meta-analysis: long-term outcomes of faecal microbiota transplantation for Clostridium difficile infection.

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Authors Li YT , Cai HF , Wang ZH , Xu J , Fang JY
Journal Alimentary pharmacology & therapeutics
Year 2016
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This article includes 19 Primary studies 18 Primary studies (19 references)

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BACKGROUND: Clostridium difficile infection is a major cause of nosocomial diarrhoea. AIM: To evaluate long-term (≥90 days) efficacy and safety of faecal microbiota transplantation for C. difficile infection and explore the factors affecting the faecal microbiota transplantation outcomes. METHODS: MEDLINE, the Cochrane Library and EMBASE were searched and only observational studies that utilised faecal microbiota transplantation for C. difficile infection with long-term follow-up duration (≥90 days) were included. Primary cure rate, overall recurrence rate and early (<90 days) and late (≥90 days) recurrence rate were calculated. RESULTS: Eighteen observational studies with 611 patients were included. The primary cure rate was 91.2% (95% confidence interval, CI 86.7-94.8%). The overall recurrence rate was 5.5% (95% CI 2.2-10.3%). The early recurrence rate and late recurrence rate were 2.7% (95% CI 0.7-6.0%) and 1.7% (95% CI 0.4-4.2%) respectively. Most adverse events were expected, short-lived, self-limited and manageable. The association between faecal microbiota transplantation therapy and adverse events such as inflammatory bowel disease flare, infectious disease and autoimmune disease was a concern but remained insignificant. Old age (≥65 years) was identified as a risk factor for after faecal microbiota transplantation therapy. Upper gastrointestinal administration also results in less frequent primary cure. CONCLUSIONS: Faecal microbiota transplantation seems to be a highly effective and robust therapy for recurrent C. difficile infection. However, more quality studies, such as randomised controlled trials and cohort studies with control groups, are needed to confirm its long-term efficacy and safety.

Systematic review

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Fecal microbiota transplantation for the treatment of Clostridium difficile infection: a systematic review.

Journal Journal of clinical gastroenterology
Year 2014
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This article includes 36 Primary studies 36 Primary studies (36 references)

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GOAL: By systematic review, we assessed the impact of fecal microbiota transplantation (FMT) for the treatment of Clostridium difficile (CD)-associated diarrhea. BACKGROUND: Fecal microbiota microbiota transplantation from a healthy donor into an individual with CD infection (CDI) can resolve symptoms. STUDY: We conducted systematic searches in PubMed, SCOPUS, Web of Science, and Cochrane Library. The last search was run on February 8, 2013. The following Medical Subject Headings terms and keywords were used alone or in combination: Clostridium difficile; Clostridium infection; pseudomembranous colitis; feces; stools; fecal suspension; fecal transplantation; fecal transfer; fecal infusion; microbiota; bacteriotherapy; enema; nasogastric tube; colonoscopy; gastroscopy; fecal donation; donor. A critical appraisal of the clinical research evidence on the effectiveness and safety of FMT for the treatment of patients with CD-associated diarrhea was made. RESULTS: Twenty full-text case series, 15 case reports, and 1 randomized controlled study were included for the final analysis. Almost all patients treated with donors' fecal infusion experienced recurrent episodes of CD-associated diarrhea despite standard antibiotic treatment. Of a total of 536 patients treated, 467 (87%) experienced resolution of diarrhea. Diarrhea resolution rates varied according to the site of infusion: 81% in the stomach; 86% in the duodenum/jejunum; 93% in the cecum/ascending colon; and 84% in the distal colon. No severe adverse events were reported with the procedure. CONCLUSIONS: FMT seems efficacious and safe for the treatment of recurrent CDI. Hospitals should encourage the development of fecal transplantation programs to improve therapy of local patients.

Systematic review

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Treatment of recurrent Clostridium difficile infection: a systematic review.

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Authors O'Horo JC , Jindai K , Kunzer B , Safdar N
Journal Infection
Year 2014
Links Pubmed DOI PubMed Central

This article includes 66 Primary studies 66 Primary studies (66 references)

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BACKGROUND: Clostridium difficile infection (CDI) recurs in nearly one-third of patients who develop an initial infection. Recurrent CDI (RCDI) is associated with considerable morbidity, mortality, and cost. Treatment for RCDI has not been not well examined. METHODS: A systematic review. RESULTS: Sixty-four articles were identified evaluating eight different treatment approaches: metronidazole, vancomycin, fidaxomicin, nitazoxanide, rifampin, immunoglobulins, probiotics, and fecal bacteriotherapy. The meta-analysis found vancomycin to have a similar efficacy to metronidazole, although studies used varying doses and durations of therapy. Fidaxomicin was slightly more efficacious than vancomycin, though the number of studies was small. Good evidence for probiotics was limited. Fecal bacteriotherapy was found to be highly efficacious in a single randomized trial. CONCLUSION: Metronidazole and vancomycin have good evidence for use in RCDI but heterogeneity in treatment duration and dose precludes robust conclusions. Fidaxomicin may have a role in treatment, but evidence is limited to subgroup analyses. Fecal bacteriotherapy was the most efficacious. Saccharomyces boulardii may have a role as adjunctive treatment.

Systematic review

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Fecal microbiota transplantation for Clostridium difficile infection: systematic review and meta-analysis.

Authors Kassam Z , Lee CH , Yuan Y , Hunt RH
Journal The American journal of gastroenterology
Year 2013
Links Pubmed DOI

This article is included in 1 Structured summary of systematic reviews 11 Structured summaries of systematic reviews (1 reference)

This article includes 11 Primary studies 11 Primary studies (11 references)

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OBJECTIVES: The clinical and economic burden of Clostridium difficile infection (CDI) is significant. Recurrent CDI management has emerged as a major challenge with suboptimal response to standard therapy. Fecal microbiota transplantation (FMT) has been used as a treatment to reconstitute the normal microbial homeostasis and break the cycle of antibiotic agents that may further disrupt the microbiome. Given the lack of randomized-controlled trials (RCTs) and limitations in previous systematic reviews, we aimed to conduct a systematic review with robust methods to determine the efficacy and safety profile of FMT in CDI. METHODS: An electronic search was conducted using MEDLINE (1946-March 2012), EMBASE (1974-March 2012) and Cochrane Central Register of Controlled Trials (2012). The search strategy was not limited by language. Abstract data were excluded and only completed studies that underwent the full, rigorous peer-review process were included. Studies that used FMT via any delivery modality for laboratory or endoscopically proven CDI with clinical resolution as primary outcome were included. A sample size of 10 or more patients was a further criterion. Elements of the Centre for Reviews and Dissemination checklist and the National Institute of Clinical Excellence quality assessment for case series checklist were employed to determine study quality. Eligibility assessment and data extraction were performed by two independent researchers. Both unweighted pooled resolution rates (UPR) and weighted pooled resolution rates (WPR) were calculated with corresponding 95% confidence intervals (CI) for overall studies, as well as predefined subgroups. RESULTS: Eleven studies with a total of 273 CDI patients treated with FMT were identified; no RCTs were found as none have been published. Two-hundred and forty-five out of 273 patients experienced clinical resolution (UPR 89.7%; WPR 89.1% (95% CI 84 to 93%)). There was no statistically significant heterogeneity between studies (Cochran Q test P=0.13, I(2)=33.7%). A priori subgroup analysis suggested that lower gastrointestinal FMT delivery (UPR 91.4%; WPR 91.2% (95% CI 86 to 95%)) led to a trend towards higher clinical resolution rates than the upper gastrointestinal route (UPR 82.3%; WPR 80.6% (95% CI 69-90%)) (proportion difference of WPR was 10.6% (95% CI -0.6 to 22%)). No difference in clinical outcomes was detected between anonymous vs. patient selected donors. There were no reported adverse events associated with FMT and follow-up was variable from weeks to years. CONCLUSIONS: FMT holds considerable promise as a therapy for recurrent CDI but well-designed, RCTs and long-term follow-up registries are still required. These are needed to identify the right patient, efficacy and safety profile of FMT before this approach can be widely advocated.

Systematic review

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Relationship of symptom duration and fecal bacteriotherapy in Clostridium difficile infection-pooled data analysis and a systematic review.

Journal Scandinavian journal of gastroenterology
Year 2013
Links Pubmed DOI

This article includes 25 Primary studies 25 Primary studies (25 references)

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OBJECTIVE: Clostridium difficle-associated infection (CDI) is usually treated with antibiotics; nevertheless, the infection has a high relapse rate. Case series and case reports using fecal microbiota transplant (FMT) for CDI show promising results. However, there are no large studies to provide evidence for the efficacy of this therapy. The aim of this pooled patient data meta-analysis was to determine the efficacy of FMT in CDI. METHODS: We performed a literature search for FMT for CDI or pseudomembranous colitis. Individual patient data were obtained from each study. The primary endpoint was to assess the rate of diarrhea resolution. Secondary endpoints were to identify variables associated with treatment failure and side effects of therapy. RESULTS: A total of 289 patients from 25 published articles who received FMT for CDI were included in the pooled data analysis. FMT had an overall success rate of 91.2%. On univariate analysis, shorter duration of symptoms before FMT (< 60 days) and gastroduodenal route of fecal instillation were associated with treatment failure. On multivariate regression analysis, shorter duration of symptoms (< 60 days) before the FMT (OR= 11.08; p = 0.0009) was associated with treatment failure. Reported adverse events following FMT were irritable bowel syndrome (n = 1), symptoms of mild enteritis (n = 3), and suspected peritonitis following the procedure (n = 1). CONCLUSION: FMT is a safe and effective treatment option for CDI. Shorter duration of symptoms (< 60 days) before administering FMT is associated with treatment failure.