Evidence map›Paper›PMID 35150878›Full record

SynthesisClinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases2022

Defining COVID-19-associated pulmonary aspergillosis: systematic review and meta-analysis.

Ruwandi M Kariyawasam, Tanis C Dingle, Brittany E Kula, Ben Vandermeer, Wendy I Sligl, Ilan S Schwartz

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 3 pooled it
9.0field-weighted citation impact, top 1% 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

62 citing papers in PubMed, 3 syntheses or guidelines pooled it, 89 citations in OpenAlex.

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  15. Pulmonary aspergillosis in US Veterans with COVID-19: a nationwide, retrospective cohort study.Antimicrobial stewardship & healthcare epidemiology : ASHE · 2025
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2 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Ruwandi M KariyawasamDivision of Diagnostic & Applied Microbiology, Department of Laboratory Medicine & Pathology, University of Alberta, Edmonton, Alberta, Canada; Alberta Precision Laboratories-Public Health, Edmonton, Alberta, Canada.
Tanis C DingleDivision of Diagnostic & Applied Microbiology, Department of Laboratory Medicine & Pathology, University of Alberta, Edmonton, Alberta, Canada; Alberta Precision Laboratories-Public Health, Edmonton, Alberta, Canada.
Brittany E KulaDivision of Infectious Diseases, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Department of Critical Care Medicine, University of Alberta, Edmonton, Alberta, Canada.
Ben VandermeerEpidemiology Coordinating and Research (EPI-CORE), Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.
Wendy I SliglDivision of Infectious Diseases, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Department of Critical Care Medicine, University of Alberta, Edmonton, Alberta, Canada.
Ilan S SchwartzDivision of Infectious Diseases, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada. Electronic address: ilan@ualberta.ca.
University of Alberta · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPulmonary aspergillosis may complicate coronavirus disease 2019 (COVID-19) and contribute to excess mortality in intensive care unit (ICU) patients. The disease is poorly understood, in part due to discordant definitions across studies.

objectivesWe sought to review the prevalence, diagnosis, treatment, and outcomes of COVID-19-associated pulmonary aspergillosis (CAPA) and compare research definitions. DATA SOURCES: PubMed, Embase, Web of Science, and MedRxiv were searched from inception to October 12, 2021. STUDY ELIGIBILITY CRITERIA: ICU cohort studies and CAPA case series including ≥3 patients were included.

participantsAdult patients in ICUs with COVID-19.

interventionsPatients were reclassified according to four research definitions. We assessed risk of bias with an adaptation of the Joanna Briggs Institute cohort checklist tool for systematic reviews.

methodsWe calculated CAPA prevalence using the Freeman-Tukey random effects method. Correlations between definitions were assessed with Spearman's rank test. Associations between antifungals and outcome were assessed with random effects meta-analysis.

resultsFifty-one studies were included. Among 3297 COVID-19 patients in ICU cohort studies, 313 were diagnosed with CAPA (prevalence 10%; 95% CI 8%-13%). Two hundred seventy-seven patients had patient-level data allowing reclassification. Definitions had limited correlation with one another (ρ = 0.268-0.447; p < 0.001), with the exception of Koehler and Verweij (ρ = 0.893; p < 0.001); 33.9% of patients reported to have CAPA did not fulfill any research definitions. Patients were diagnosed after a median of 8 days (interquartile range 5-14) in ICUs. Tracheobronchitis occurred in 3% of patients examined with bronchoscopy. The mortality rate was high (59.2%). Applying CAPA research definitions did not strengthen the association between mould-active antifungals and survival.

conclusionsThe reported prevalence of CAPA is significant but may be exaggerated by nonstandard definitions.

Indexed as

COVID-19Pulmonary AspergillosisAdultAntifungal AgentsCritical CareHumansIntensive Care UnitsAntifungal AgentsAspergillusCAPAFungal infectionICUMycosisSARS-CoV-2Secondary infection

Identifiers

PMID35150878
PMCPMC8828380
OpenAlexW4211139165

What OpenQuestion holds

Textmetadata
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.