Evidence map›Paper›PMID 33398510›Full record

SynthesisInternational journal of colorectal disease2021

Is diversion free ileal pouch-anal anastomosis a safe procedure? A meta-analysis of 4973 cases.

Khalid Khan, Talha Manzoor, Sarah Khan, John E Hartley

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in International journal of colorectal disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

7 citing papers in PubMed, 15 citations in OpenAlex.

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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

4 authors at 2 institutions in 1 country.

Khalid KhanDepartment of Colorectal Surgery, Castle Hill Hospital, Hull University Teaching Hospitals NHS Trust, East Yorkshire, HU16 5JQ, UK. Khalid.Khan@hey.nhs.uk.ORCID http://orcid.org/0000-0002-0325-3594
Talha ManzoorDepartment of Colorectal Surgery, Castle Hill Hospital, Hull University Teaching Hospitals NHS Trust, East Yorkshire, HU16 5JQ, UK.
Sarah KhanDepartment of Colorectal Surgery, Castle Hill Hospital, Hull University Teaching Hospitals NHS Trust, East Yorkshire, HU16 5JQ, UK.
John E HartleyDepartment of Colorectal Surgery, Castle Hill Hospital, Hull University Teaching Hospitals NHS Trust, East Yorkshire, HU16 5JQ, UK.
Castle Hill Hospital · GBHull and East Yorkshire Hospitals NHS Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIleal pouch-anal anastomosis (IPAA) has been established as the procedure of choice for patients who require excision of the colon and rectum for familial adenomatous polyposis and ulcerative colitis. The requirement for proximal stomal diversion in IPAA is controversial.

objectivesTo compare post-operative outcomes following IPAA with and without proximal diversion.

methodsComputerised literature search, of Ovid MEDLINE and EMBASE. Full-text comparative studies published between 1992 and 2019, in English language and on adult patients. Ileal pouch-anal anastomosis with or without proximal stomal diversion following proctocolectomy. Outcome measures were anastomotic leak, anastomosis strictures, re-operations, pouch failure, intra-abdominal sepsis, small bowel obstruction/ileus and mortality.

resultsFive hundred and forty-six studies were screened. Fourteen relevant studies included 4973 cases (1832 patients with no stomas vs 3141 with stomas). Anastomotic strictures (p ≤ 0.0001 OR 0.40; 95% CI (0.26-0.62)) and pouch failures (p = 0.003 OR 0.54; 95% CI (0.36-0.82)) were higher in diverted than non-diverted patients. Re-operation was more frequently required in non-diverted patients (p = 0.02 OR 2.51; 95% CI (1.12-5.59)). Heterogeneity was low in 5 out of 7 variables.

conclusionIn selected patients, diversion-free IPAA is a safe procedure associated with lower anastomotic stricture and pouch failure rates than diverted IPAA. This appears to occur at the expense of a higher re-operation rate. An RCT is required to help define the selection criteria.

Indexed as

Adenomatous Polyposis ColiColitis, UlcerativeColonic PouchesProctocolectomy, RestorativeAdultAnastomosis, SurgicalHumansPostoperative ComplicationsTreatment OutcomeColitisFamilial adenomatous polyposesIleal pouch-anal anastomosisLoop ileostomyRestorative ProctocolectomyStoma

Identifiers

PMID33398510
OpenAlexW3121074024

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.