Evidence map›Paper›PMID 33064212›Full record

SynthesisInternational journal of colorectal disease2021

A meta-analysis of the role of diverting ileostomy after rectal cancer surgery.

Nasir Zaheer Ahmad, Muhammad Hasan Abbas, Saad Ullah Khan, Amjad Parvaiz

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 53 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 4 pooled it
3.3field-weighted citation impact, top 6% 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

53 citing papers in PubMed, 4 syntheses or guidelines pooled it, 82 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 3 institutions in 2 countries.

Nasir Zaheer AhmadDepartment of Surgery, University Hospital Limerick, St Nessan's Rd, Dooradoyle, Co, Limerick, V94 F858, Republic of Ireland. nasirzahmad@gmail.com.
Muhammad Hasan AbbasDepartment of Surgery, Russells Hall Hospital NHS Trust, Pensnett Rd, West Midlands, Dudley, DY1 2HQ, UK.
Saad Ullah KhanDepartment of Surgery, Russells Hall Hospital NHS Trust, Pensnett Rd, West Midlands, Dudley, DY1 2HQ, UK.
Amjad ParvaizFaculty of Health Sciences, University of Portsmouth, Portsmouth, UK.
Russells Hall Hospital · GBUniversity Hospital Limerick · IEUniversity of Portsmouth · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAnastomotic leak is a feared complication of rectal cancer surgery. A diverting stoma is believed to act as a safety mechanism against this undesirable outcome. This meta-analysis aimed to examine the role of loop ileostomy in the prevention of this complication.

methodsThe Medline, Embase and Cochrane databases were searched for randomized controlled trials (RCTs) comparing anastomotic complications after rectal cancer surgery in the presence or absence of diverting ileostomy. The need for reoperation and postoperative complications were also analysed. The length of hospital stay, intraoperative blood loss and operating time were analysed as secondary endpoints.

resultsA significantly higher number of anastomotic leaks was detected in patients with no diverting ileostomies than in those with diversion (odds ratio (OR) 0.292 and 95% confidence interval (CI) 0.177-0.481), and more patients required reoperations in this group (OR 0.219 and 95% CI 0.114-0.422). The rate of complications other than anastomotic leak was significantly higher in patients with diverting ileostomies than in those without (OR 3.337 and 95% CI of 1.570-7.093). The operating time was longer in the ileostomy group than in the no ileostomy group (P 0.001), but no significant differences in the intraoperative blood loss or postoperative hospital stay length were observed between the two groups(P 0.199 and 0.191 respectively).

conclusionA lower leak rate in the presence of diverting ileostomy is supported by relatively weak evidence. While mitigating the consequences of leakage, diverting ileostomies lead to numerous other complications. High-quality RCTs are needed before routine ileostomy diversions can be recommended after rectal cancer surgery.

Indexed as

IleostomyRectal NeoplasmsAnastomosis, SurgicalAnastomotic LeakHumansPostoperative ComplicationsRectumRetrospective StudiesAnastomotic leakAnterior resectionDiverting ileostomyRectal cancer

Identifiers

PMID33064212
OpenAlexW3093352635

What OpenQuestion holds

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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.