Evidence map›Paper›PMID 30348107›Full record

SynthesisBMC nephrology2018

Incidence and impact on outcomes of acute kidney injury after a stroke: a systematic review and meta-analysis.

Julia Arnold, Khai Ping Ng, Don Sims, Paramjit Gill, Paul Cockwell, Charles Ferro

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC nephrology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 3 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

35 citing papers in PubMed, 3 syntheses or guidelines 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.

Julia ArnoldDepartment of Nephrology, University Hospitals Birmingham, Birmingham, B15 2WB, UK.
Khai Ping NgDepartment of Nephrology, University Hospitals Birmingham, Birmingham, B15 2WB, UK.
Don SimsDepartment of Stroke, University Hospitals Birmingham, Birmingham, UK.
Paramjit GillInstitute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
Paul CockwellDepartment of Nephrology, University Hospitals Birmingham, Birmingham, B15 2WB, UK.
Charles FerroDepartment of Nephrology, University Hospitals Birmingham, Birmingham, B15 2WB, UK. Charles.Ferro@uhb.nhs.uk.ORCID 0000-0003-0577-7081

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatients with chronic kidney disease have worse outcomes after stroke. However, the burden of acute kidney injury after stroke has not been extensively investigated.

methodsWe used MEDLINE and Embase to conduct a systematic review and meta-analysis of published studies that provided data on the risk of AKI and outcomes in adults after ischemic and hemorrhagic stroke. Pooled incidence was examined using the Stuart-Ord method in a DerSimonian-Laird model. Pooled Odds Ratios and 95% confidence intervals were calculated for outcomes using a random effects model. This review was registered with PROSPERO (CRD42017064588).

resultsEight studies were included, five from the United States, representing 99.9% of included patients. Three studies used established acute kidney injury criteria based on creatinine values to define acute kidney injury and five used International Classification of Diseases coding definitions. Overall pooled incidence was 9.61% (95% confidence interval 8.33-10.98). Incidence for studies using creatinine definitions was 19.51% (95% confidence interval 12.75-27.32%) and for studies using coding definitions 4.63% (95% confidence interval 3.65-5.72%). Heterogeneity was high throughout. Mortality in stroke patients who sustained acute kidney injury was increased (Odds Ratio 2.45; 95% confidence interval 1.47-4.10). Three studies reported risk factors for acute kidney injury. There was sparse information on other outcomes.

conclusionsMortality in stroke patients who develop acute kidney injury is significantly increased. However the reported incidence of AKI after stroke varies widely and is underestimated using coding definitions. Larger international studies are required to identify potentially preventable factors to reduce acute kidney injury after stroke and improve outcomes.

Indexed as

Acute Kidney InjuryHumansIncidenceObservational Studies as TopicProspective StudiesRetrospective StudiesStrokeTreatment OutcomeAcute kidney injuryCerebrovascular diseaseMeta-analysisMortality/survivalStroke

Identifiers

PMID30348107
PMCPMC6196566

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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.