Evidence map›Paper›PMID 32206962›Full record

SynthesisTechniques in coloproctology2020

Anastomotic leak and cancer-specific outcomes after curative rectal cancer surgery: a systematic review and meta-analysis.

A Karim, V Cubas, S Zaman, S Khan, H Patel, P Waterland

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Techniques in coloproctology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

30 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

6 authors.

A KarimDepartment of Colorectal Surgery, Worcester Royal Hospital, Charles Hastings Way, Worcester, WR5 1DD, UK. ahmedkarim101@yahoo.com.ORCID 0000-0002-5704-4384
V CubasDepartment of Colorectal Surgery, Worcester Royal Hospital, Charles Hastings Way, Worcester, WR5 1DD, UK.
S ZamanDepartment of Colorectal Surgery, Russels Hall Hospital, Dudley, UK.
S KhanDepartment of Colorectal Surgery, Russels Hall Hospital, Dudley, UK.
H PatelDepartment of Colorectal Surgery, Worcester Royal Hospital, Charles Hastings Way, Worcester, WR5 1DD, UK.
P WaterlandDepartment of Colorectal Surgery, Russels Hall Hospital, Dudley, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of the present study was to perform a systematic review and meta-analysis of cancer-specific outcomes after curative rectal cancer surgery comparing anastomotic leak (AL) with no leak.

methodsPubMed, Medline and Embase databases were searched to identify studies comparing cancer-specific outcomes after rectal cancer surgery in patients with AL and without. A meta-analysis with a random-effects model was used to calculate pooled odds ratios (OR) and confidence intervals (CI) for each outcome measure.

resultsA total of 18 studies were included for meta-analysis, comprising a total of 18,039 patients after curative rectal resection (1764 AL, 16,275 without AL). The overall rate of AL was 9.8%. After AL and excluding 30-day mortality there was an increased risk of local recurrence (OR 1.50; CI 1.23, 1.82), worse overall survival (OR 0.69; CI 0.60-0.81), decreased disease free survival (OR 0.51; CI 0.36-0.73) and cancer specific survival (OR 0.71; CI 0.54-0.94). Distant recurrence (OR 1.10; CI 0.89-1.37) and overall recurrence (OR 1.33; CI 0.64-2.76) were not significantly different between the two groups.

conclusionsAL may negatively impact cancer-specific outcomes after curative rectal cancer surgery and could be considered an independent negative prognostic factor.

Indexed as

Anastomotic LeakRectal NeoplasmsDisease-Free SurvivalHumansNeoplasm Recurrence, LocalOdds RatioAnastomotic leakMeta-analysisRectal cancerRecurrence

Identifiers

What OpenQuestion holds

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Registered trials

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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.