Evidence map›Paper›PMID 42005610›Full record

ArticleResuscitation plus2026

Ventilation parameters during adult cardiopulmonary resuscitation: a systematic review.

Nicholas J Johnson, Guillaume Debaty, Betty Y Yang, Ari Moskowitz, Ian Drennan, Jimena Del Castillo, Theresa Olasveengen, Katherine M Berg, Laurie J Morrison, Janet E Bray and 1 more

Abstract read
In one paragraph

Article in Resuscitation plus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Article
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

11 authors.

Nicholas J JohnsonDepartment of Emergency Medicine & Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington, Seattle, WA, United States.
Guillaume DebatyUniv. Grenoble Alpes, Emergency Department and Mobile Intensive Care Unit, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, 38000 Grenoble, France.
Betty Y YangDepartment of Emergency Medicine, University of Texas, Southwestern, Dallas, TX, United States.
Ari MoskowitzDivision of Critical Care Medicine, Montefiore Medical Center, Bronx, NY, United States.
Ian DrennanInterdepartmental Division of Critical Care, Department of Medicine, University of Toronto; Institute of Health Policy, Management, and Evaluation, Dalla Lana School of Public Health, University of Toronto; Ornge Air Ambulance and Critical Care Transport; Department of Emergency Services and Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, United States.
Jimena Del CastilloHospital General Universitario Gregorio Marañón, Madrid, Spain.
Theresa OlasveengenDepartment of Anesthesia and Intensive Care Medicine, Oslo University Hospital, and Institute of Clinical Medicine, University of Oslo, Norway.
Katherine M BergCenter for Resuscitation Science and Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, United States.
Laurie J MorrisonDivision of Emergency Medicine, Department of Medicine, University of Toronto; Department of Emergency Services, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Janet E BraySchool of Public Health and Preventive Medicine, Monash University, Melbourne, Australia.
International Liaison Committee on Resuscitation Basic and Advanced Life Support Task Forces

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Effective ventilation during cardiopulmonary resuscitation (CPR) is challenging, with limited evidence to guide optimal rates, volumes, and other parameters. This systematic review, part of the continuous evidence evaluation process for the International Liaison Committee on Resuscitation, examined whether specific tidal volumes, respiratory rates, inspiratory times, or positive end-expiratory pressure (PEEP) improve outcomes. Methods: Studies of adults in any setting (in-hospital or out-of-hospital cardiac arrest) receiving ventilation were included if they compared specific tidal volumes, respiratory rates, inspiratory times, or PEEP. MEDLINE, EMBASE, and CENTRAL were searched from inception to November 10, 2025. Risk of bias was assessed using RoB 2.0 and ROBINS-I; certainty of evidence was evaluated with GRADE. Registered in PROSPERO (CRD420251070065). Results: Of 3021 records, 11 studies (3 randomized trials, 8 observational) met eligibility criteria. Certainty of evidence was very low, limited by bias, inconsistency, indirectness, and imprecision. Due to heterogeneity, results were reported narratively using Synthesis Without Meta-Analysis (SWiM) guidelines. Ventilation rates showed mixed associations with neurological, survival, and return of spontaneous circulation (ROSC) outcomes; some studies indicated harm with lower ventilation rates. Most found no differences between higher and lower tidal volumes, although very low tidal volumes were associated with worse outcomes in some studies. When impedance-detected ventilations occurred in ≥50% of chest compression pauses during 30:2 CPR, survival and ROSC were higher. Conclusion: Evidence on optimal ventilation during CPR is inconsistent and of very low certainty. Very low ventilation rates and tidal volumes may be harmful. Future research should use robust designs to define evidence-based ventilation targets.

Indexed as

Bag valve mask ventilationCardiopulmonary resuscitationHeart arrestTidal volumeVentilation

Identifiers

PMID42005610
PMCPMC13091514

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.