• Marije Deutekom and Annette C Dobben.
• Department of Social Medicine k2-207, Academic Medical Center, Meibergdreef 9, Amsterdam, Netherlands, 1105 AZ.
• Cochrane Db Syst Rev. 2015 Jul 20 (7): CD005086.

BackgroundFaecal incontinence is a distressing disorder with high social stigma. Not all people with faecal incontinence can be cured with conservative or surgical treatment and they may need to rely on containment products, such as anal plugs.ObjectivesTo assess the performance of different types of anal plugs for containment of faecal incontinence.Search MethodsWe searched the Cochrane Incontinence Group Specialised Register, which contains trials identified from the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, MEDLINE In-Process, ClinicalTrials.gov, World Health Organization (WHO) ICTRP and handsearching of journals and conference proceedings (searched 26 May 2015). Reference lists of identified trials were searched and plug manufacturers were contacted for trials. No language or other limitations were imposed.Selection CriteriaTypes of studies: this review was limited to randomised and quasi-randomised controlled trials (including crossovers) of anal plug use for the management of faecal incontinence.Types Of Participantschildren and adults with faecal incontinence.Types of interventions: any type of anal plug. Comparison interventions might include no treatment, conservative (physical) treatments, nutritional interventions, surgery, pads and other types or sizes of plugs.Data Collection And AnalysisTwo reviewers independently assessed methodological quality and extracted data from the included trials. Authors of all included trials were contacted for clarification concerning methodological issues.Main ResultsFour studies with a total of 136 participants were included. Two studies compared the use of plugs versus no plugs, one study compared two sizes of the same brand of plug, and one study compared two brands of plugs. In all included studies there was considerable dropout (in total 48 (35%) dropped out before the end of the study) for varying reasons. Data presented are thus subject to potential bias. 'Pseudo-continence' was, however, achieved by some of those who continued to use plugs, at least in the short-term. In a comparison of two different types of plug, plug loss was less often reported and overall satisfaction was greater during use of polyurethane plugs than polyvinyl-alcohol plugs.Authors' ConclusionsThe available data were limited and incomplete, and not all pre-specified outcomes could be evaluated. Consequently, only tentative conclusions are possible. The available data suggest that anal plugs can be difficult to tolerate. However, if they are tolerated they can be helpful in preventing incontinence. Plugs could then be useful in a selected group of people either as a substitute for other forms of management or as an adjuvant treatment option. Plugs come in different designs and sizes; the review showed that the selection of the type of plug can impact on its performance.

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