Evidence map›Paper›PMID 42253489›Full record

ArticleResuscitation plus2026

Defibrillation outcomes by pad placement for initially non-shockable out-of-hospital cardiac arrest.

Amandalin Rock, Matthew R Neth, Craig D Newgard, David Dennis, Jack Nuttall, Ritu Sahni, Jonathan Jui, Mohamud R Daya, Joshua R Lupton

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. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

9 authors.

Amandalin RockDepartment of Emergency Medicine, Oregon Health & Science University, Portland, OR, USA.
Matthew R NethDepartment of Emergency Medicine, Oregon Health & Science University, Portland, OR, USA.
Craig D NewgardDepartment of Emergency Medicine, Oregon Health & Science University, Portland, OR, USA.
David DennisTualatin Valley Fire and Rescue, Portland, OR, USA.
Jack NuttallWashington County Public Health, Hillsboro, OR, USA.
Ritu SahniDepartment of Emergency Medicine, Oregon Health & Science University, Portland, OR, USA.
Jonathan JuiDepartment of Emergency Medicine, Oregon Health & Science University, Portland, OR, USA.
Mohamud R DayaDepartment of Emergency Medicine, Oregon Health & Science University, Portland, OR, USA.
Joshua R LuptonDepartment of Emergency Medicine, Oregon Health & Science University, Portland, OR, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Study objective: Our objective was to determine the association between anterior-posterior (AP) and anterior-lateral (AL) pad placement and outcomes for patients with out-of-hospital cardiac arrest (OHCA) with an initial non-shockable rhythm requiring subsequent defibrillation. Methods: This observational cohort study included patients with OHCA treated by an emergency medical services (EMS) agency from July 2019 through June 2023. We included patients with initial non-shockable rhythms who subsequently developed a shockable rhythm and received EMS defibrillation. We compared outcomes between AP and AL placement. The primary outcome was the cumulative incidence in return of spontaneous circulation (ROSC) after defibrillation among those at-risk using competing risks regression, adjusting for confounding variables. We assessed secondary outcomes through multivariable logistic regression, including ROSC, ROSC at emergency department (ED) arrival, survival to admission, survival to discharge, and survival with cerebral performance category score ≤2. Results: We included 109 patients, 69 with AP and 40 with AL. AP, compared to AL, had significantly higher cumulative incidence of subsequent ROSC (subdistribution hazard ratio [95% CI]: 2.66 [1.04-6.84]). AP did not achieve statistically significant differences in odds (adjusted odds ratio [95% CI]) of ROSC at any time (2.18 [0.65-7.38]), ROSC at ED arrival (1.11 [0.26-4.72]), or survival to admission (2.52 [0.61-10.31]). No patients with AL (0/40) survived to discharge (versus AP 3/69 [4.3%]), precluding multivariable analysis. Conclusion: Larger studies on initial pad placement for patients suffering OHCA with initial non-shockable rhythms subsequently receiving defibrillation are necessary to determine whether AP or AL is the most optimal initial strategy.

Indexed as

Cardiac arrestDefibrillationOut-of-hospital cardiac arrestPad positioning

Identifiers

PMID42253489
PMCPMC13240841

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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.