Evidence map›Paper›PMID 31541693›Full record

ArticleResuscitation2019

Cardioplegia defibrillation of circulatory and metabolic phase ventricular fibrillation in a swine model.

Keith A Marill, David D Salcido, Matthew L Sundermann, Allison C Koller, James J Menegazzi

Abstract read
In one paragraph

Article in Resuscitation, 2019. 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
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0citing papers in PubMed
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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

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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

5 authors.

Keith A MarillDepartment of Emergency Medicine, Harvard Medical School, United States. Electronic address: kmarill@partners.org.
David D SalcidoDepartment of Emergency Medicine, University of Pittsburgh School of Medicine, United States.
Matthew L SundermannDepartment of Emergency Medicine, University of Pittsburgh School of Medicine, United States.
Allison C KollerDepartment of Emergency Medicine, University of Pittsburgh School of Medicine, United States.
James J MenegazziDepartment of Emergency Medicine, University of Pittsburgh School of Medicine, United States.

Funding

Pittsburgh Career Development Program in Emergency Medicine ResearchK12HL109068 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CALLAWAY, CLIFTON W., YEALY, DONALD M · 2011 to 2015
$3.1M
NHLBI NIH HHS K12 HL109068
6 · The paper itself

Abstract

introductionWe previously found potassium cardioplegia followed by rapid calcium reversal (Kplegia) can achieve defibrillation in a swine model of electrical phase of ventricular fibrillation (VF) comparable to standard care. HYPOTHESIS: Exploring 3 possible potassium dose and timing protocols, we hypothesize Kplegia may benefit resuscitation of longer duration untreated VF.

methodsThree separate blinded randomized placebo-controlled trials were performed with electrically-induced VF untreated for durations of 6, 9, and 12min in a swine model. Experimental groups received infusion of 1 or 2 boluses of intravenous (IV) potassium followed by a single calcium reversal bolus. Potassium was replaced by saline in the control groups. Outcomes included: amplitude spectrum area (AMSA) during VF, resulting rhythms, number of defibrillations, return of spontaneous circulation (ROSC), and hemodynamics for 1h post ROSC. Binomial and interval data outcomes were compared with exact statistics. Serial interval data were assessed with mixed regression models.

resultsTwelve, 12, and 8 animals were included at 6, 9, and 12min VF durations for a total of 32. ROSC was achieved in: 4/6 Kplegia and 3/6 control animals in the 6min protocol, (p=1.00), 4/6 Kplegia and 2/6 control animals in the 9min protocol,(p=0.57), and 0/5 Kplegia and 1/3 control animals in the 12min protocol,(p=0.38). Two of 8 Kplegia animals achieved ROSC with chemical defibrillation alone.

conclusionsThe majority of animals achieved ROSC after up to 9min of untreated VF arrest using K plegia protocols. K plegia requires further optimization for both peripheral IV and intraosseous infusion, and to assess for superiority over standard care. Institutional Animal Care and Use Committee protocol #15127224.

Indexed as

AnimalsCalcium CompoundsDisease Models, AnimalFemaleHeart Arrest, InducedMalePotassium CompoundsRandom AllocationResuscitationSwineVentricular FibrillationCalcium CompoundsPotassium CompoundsCalciumHeart arrestPotassiumSudden cardiac deathVentricular fibrillation

Identifiers

PMID31541693
PMCPMC6924988

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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.