Evidence map›Paper›PMID 40708744›Full record

ArticleWorld journal of emergency medicine2025

Effect of bag valve ventilation versus mechanical ventilation after endotracheal intubation during cardiopulmonary resuscitation on outcomes following out-of-hospital cardiac arrest: a propensity score analysis.

Young Min Kim, Hyun Seok Chai, Gwan Jin Park, Sang Chul Kim, Hoon Kim, Seok Woo Lee, Hyeon Jeong Park, Han Bit Kim, Hyo Been Lee, Ji Han Lee

Abstract read
In one paragraph

Article in World journal of emergency medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

10 authors.

Young Min Kim1Department of Emergency Medicine, Chungbuk National University Hospital, Cheong-ju 28644, Republic of Korea.
Hyun Seok Chai1Department of Emergency Medicine, Chungbuk National University Hospital, Cheong-ju 28644, Republic of Korea.
Gwan Jin Park1Department of Emergency Medicine, Chungbuk National University Hospital, Cheong-ju 28644, Republic of Korea.
Sang Chul Kim1Department of Emergency Medicine, Chungbuk National University Hospital, Cheong-ju 28644, Republic of Korea.
Hoon Kim1Department of Emergency Medicine, Chungbuk National University Hospital, Cheong-ju 28644, Republic of Korea.
Seok Woo Lee1Department of Emergency Medicine, Chungbuk National University Hospital, Cheong-ju 28644, Republic of Korea.
Hyeon Jeong Park2Department of Emergency Medicine, Chungbuk National University College of Medicine, Cheong-ju 28644, Republic of Korea.
Han Bit Kim3Department of Emergency Medicine, Soonchunhyang University Bucheon Hospital, Bucheon 14584, Republic of Korea.
Hyo Been Lee4Healthcare Big Data Center, Research Institute of Clinical Medicine, Kyung Hee University Hospital at Gangdong, Seoul 05278, Republic of Korea.
Ji Han Lee2Department of Emergency Medicine, Chungbuk National University College of Medicine, Cheong-ju 28644, Republic of Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn this study, we aimed to evaluate the impact of mechanical ventilator (MV) utilizaton during cardiopulmonary resuscitation (CPR) on out-of-hospital cardiac arrest (OHCA) patient clinical outcomes in the emergency department.

methodsThis single-centered, retrospective, case-control study analyzed electronic medical records. Patients aged >18 years with non-traumatic OHCA who were treated at an emergency medical center between January 2019 and December 2023 were included. These patients were accessed according to the ventilatory method used: MV ventilation (volume control, tidal volume 6-8 mL/kg, frequency 10 beat per minute, inspiratory time 1 s) and manual resuscitator bag valve (BV) ventilation. The primary outcome was the return of spontaneous circulation (ROSC). After 1:1 propensity score matching, the clinical outcomes were analyzed.

resultsA total of 649 patients were enrolled in this study. Before matching, the clinical outcomes and pneumothorax incidence did not differ between the MV and BV groups. After 1:1 matching between the two groups using propensity scores, 522 patients (261 MV and 261 BV) were analyzed. Propensity score matching yielded an adequate balance (standardized mean difference <0.10) for all covariates. The estimated odds ratio (

conclusionIn patients with OHCA admitted to the emergency department, MV ventilation during CPR showed clinical outcomes similar to those of BV ventilation in most measures. However, survival at hospital discharge was significantly higher in the MV group, suggesting potential benefits of MV use in selected patients.

Indexed as

Bag valve ventilationCardiac arrestMechanical ventilation

Identifiers

PMID40708744
PMCPMC12283453

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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.