Evidence map›Paper›PMID 34825957›Full record

SynthesisInternational journal of colorectal disease2022

Prevalence of 'pouch failure' of the ileoanal pouch in ulcerative colitis: a systematic review and meta-analysis.

Zaid Alsafi, Alice Snell, Jonathan P Segal

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in International journal of colorectal disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Perineal salvage surgery for prolapse of ileal pouch anal anastomosis: Systematic review and meta-analysis.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2025
    Pooled it
  2. Review
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  7. Review
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  14. Predictors of pouch failure: A tertiary care inflammatory bowel disease centre experience.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2023
    Article
  15. Pelvic Pouch Failure: Treatment Options.Clinics in colon and rectal surgery · 2022
    Review
  16. Managing ulcerative colitis after surgery.Frontiers in medicine · 2022
    Review
  17. Review
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 1 country.

Zaid AlsafiImperial College London, London, UK.ORCID http://orcid.org/0000-0002-1661-4782
Alice SnellSurrey and Sussex Healthcare NHS Trust, Redhill, UK.
Jonathan P SegalDepartment of Gastroenterology, Imperial College Healthcare NHS Trust, London, UK.
Imperial College Healthcare NHS Trust · GBImperial College London · GBSurrey and Sussex Healthcare NHS Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsThe ileoanal pouch (IPAA) provides patients with ulcerative colitis (UC) that have not responded to medical therapy an option to retain bowel continuity and defecate without the need for a long-term stoma. Despite good functional outcomes, some pouches fail, requiring permanent diversion, pouchectomy, or a redo pouch. The incidence of pouch failure ranges between 2 and 15% in the literature. We conducted a systematic review and meta-analysis aiming to define the prevalence of pouch failure in patients with UC who have undergone IPAA using population-based studies.

methodsWe searched Embase, Embase classic and PubMed from 1978 to 31st of May 2021 to identify cross-sectional studies that reported the prevalence of pouch failure in adults (≥ 18 years of age) who underwent IPAA for UC.

resultsTwenty-six studies comprising 23,389 patients were analysed. With < 5 years of follow-up, the prevalence of pouch failure was 5% (95%CI 3-10%). With ≥ 5 but < 10 years of follow-up, the prevalence was 5% (95%CI 4-7%). This increased to 9% (95%CI 7-16%) with ≥ 10 years of follow-up. The overall prevalence of pouch failure was 6% (95%CI 5-8%).

conclusionsThe overall prevalence of pouch failure in patients over the age of 18 who have undergone restorative proctocolectomy in UC is 6%. These data are important for counselling patients considering this operation. Importantly, for those patients with UC being considered for a pouch, their disease course has often resulted in both physical and psychological morbidity and hence providing accurate expectations for these patients is vital.

Indexed as

Colitis, UlcerativeColonic PouchesProctocolectomy, RestorativeAdultCross-Sectional StudiesHumansMiddle AgedPostoperative ComplicationsPrevalenceRetrospective StudiesTreatment OutcomeIleal pouch-anal anastomosisPouch failureUlcerative colitis

Identifiers

PMID34825957
PMCPMC8803821
OpenAlexW3216881437

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.