Evidence map›Paper›PMID 36732439›Full record

ArticleIntensive care medicine experimental2023

Lower gut dysbiosis and mortality in acute critical illness: a systematic review and meta-analysis.

Tess Evans, Umar Ali, Ryan Anderton, Edward Raby, Laurens Manning, Edward Litton

Open access · goldAbstract read
In one paragraph

Article in Intensive care medicine experimental, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 3 pooled it
4.3field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 3 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  4. Review
  5. Laboratory-DetectedHealth science reports · 2026
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  11. The gastrointestinal microbiome in critical illness: A Clinician's guide to mechanisms, emerging tools, and therapeutic questions.Critical care and resuscitation : journal of the Australasian Academy of Critical Care Medicine · 2025
    Review
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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 at 2 institutions in 1 country.

Tess EvansIntensive Care Unit, Fiona Stanley Hospital, South Metropolitan Health Service, WA Health, Perth, Australia. tessdotevans@gmail.com.ORCID http://orcid.org/0000-0001-7764-4363
Umar AliSchool of Medicine, University of Western Australia, Nedlands, Australia.
Ryan AndertonSchool of Health Sciences, University of Notre Dame Australia (Fremantle), Fremantle, Australia.
Edward RabyDepartment of Infectious Diseases, Fiona Stanley Hospital, South Metropolitan Health Service, WA Health, Perth, Australia.
Laurens ManningDepartment of Infectious Diseases, Fiona Stanley Hospital, South Metropolitan Health Service, WA Health, Perth, Australia.
Edward LittonIntensive Care Unit, Fiona Stanley Hospital, South Metropolitan Health Service, WA Health, Perth, Australia.
The University of Western Australia · AUThe University of Notre Dame Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe human gastrointestinal tract harbours a complex multi-kingdom community known as the microbiome. Dysbiosis refers to its disruption and is reportedly extreme in acute critical illness yet its clinical implications are unresolved. The review systematically evaluates the association between gut dysbiosis and clinical outcomes of patients early in critical illness.

methodsFollowing PRISMA guidelines, a prospectively registered search was undertaken of MEDLINE and Cochrane databases for observational studies undertaking metagenomic sequencing of the lower gastrointestinal tract of critically ill adults and children within 72 h of admission. Eligible studies reported an alpha diversity metric and one or more of the primary outcome, in-hospital mortality, or secondary clinical outcomes. After aggregate data were requested, meta-analysis was performed for four studies with in-hospital mortality stratified to high or low Shannon index.

resultsThe search identified 26 studies for systematic review and 4 had suitable data for meta-analysis. No effect of alpha diversity was seen on in-hospital mortality after binary transformation of Shannon index (odds ratio 0.52, CI 0.12-4.98, I

conclusionsThere is a paucity of large, rigorous observational studies in this population. Globally, alpha diversity was dynamically reduced in early ICU admission in adults and children and was not associated with in-hospital mortality. The abundance of taxa such as Enterococcus spp. appears to offer greater predictive capacity for important clinical and ecological outcomes.

Indexed as

Critical illnessDysbiosisGutMicrobiomeSepsis

Identifiers

PMID36732439
PMCPMC9895325
OpenAlexW4318946818

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.