Evidence map›Paper›PMID 38038731›Full record

SynthesisInternational journal of colorectal disease2023

Collagenase-producing bacteria are common in anastomotic leakage after colorectal surgery: a systematic review.

Anders Bech Jørgensen, Isabella Jonsson, Lennart Friis-Hansen, Birgitte Brandstrup

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in International journal of colorectal disease, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 8% 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.

  1. Pooled it
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  4. Comparative Genomic and Functional Profiling of ECM-Targeting Enzymes inbioRxiv : the preprint server for biology · 2026
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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.

Anders Bech JørgensenDepartment of Surgery, Holbæk Hospital, Part of Copenhagen University Hospitals, Region Zealand, Denmark. dr.bech@gmail.com.ORCID http://orcid.org/0000-0002-7385-0511
Isabella JonssonDepartment of Surgery, Holbæk Hospital, Part of Copenhagen University Hospitals, Region Zealand, Denmark.
Lennart Friis-HansenDepartment of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.ORCID http://orcid.org/0000-0002-7222-0163
Birgitte BrandstrupDepartment of Surgery, Holbæk Hospital, Part of Copenhagen University Hospitals, Region Zealand, Denmark.ORCID http://orcid.org/0000-0003-2659-1198
University of Copenhagen · DKRegion Zealand · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeSome gut bacteria can produce enzymes (collagenases) that can break down collagen in the intestinal wall. This could be a part of the pathophysiology of anastomotic leakage (AL). This systematic review aimed to investigate if such bacteria were present more frequently in AL patients versus non-AL patients following colorectal surgery.

methodsThis systematic review was reported according to the PRISMA and AMSTAR guidelines. Before the literature search, a study protocol was registered at PROSPERO (CRD42022363454). We searched PubMed, EMBASE, Google Scholar, and Cochrane CENTRAL on April 9

resultsWe included 15 studies, with a total of 52,945 patients, of which 1,747 had AL, and bacteriological information from feces, mucosa, the resected specimen, or drain fluid was presented. In 10 of the 15 studies, one or more collagenase-producing bacteria were identified in the patients with AL. Neither the bacteria nor the collagenase production were quantified in any of the studies. The studies varied greatly in terms of sample material, analytical method, and time of collection. Studies using DNA sequencing methods did not report findings of collagenase-producing bacteria.

conclusionCollagenase-producing bacteria are more common in patients with AL following colorectal surgery than in patients without AL, but the significance is unclear. From the current studies, it is not possible to determine the pathogenicity of the individual gut bacteria.

Indexed as

Colorectal SurgeryDigestive System Surgical ProceduresAnastomotic LeakBacteriaCollagenasesHumansCollagenasesAnastomotic leakageBacterial collagenaseColorectal surgeryComplicationsGut microbiome

Identifiers

PMID38038731
PMCPMC10692267
OpenAlexW4389224434

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.