Evidence map›Paper›PMID 35450595›Full record

ArticleJACC. Clinical electrophysiology2022

Prediction of Sudden Cardiac Death Manifesting With Documented Ventricular Fibrillation or Pulseless Ventricular Tachycardia.

Sumeet S Chugh, Kyndaron Reinier, Audrey Uy-Evanado, Harpriya S Chugh, David Elashoff, Christopher Young, Angelo Salvucci, Jonathan Jui

Open access · greenAbstract read
In one paragraph

Article in JACC. Clinical electrophysiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
11.3field-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

28 citing papers in PubMed, 49 citations in OpenAlex.

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  6. Left ventricular ejection fraction and myocardial fibrosis in sudden cardiac death.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2025
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  17. Ventricular fibrillation and the proteome problem: can we solve it?European heart journal. Acute cardiovascular care · 2024
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 1 country.

Sumeet S ChughCenter for Cardiac Arrest Prevention, Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Health System, Los Angeles, California, USA; Division of Artificial Intelligence in Medicine, Department of Medicine, Cedars-Sinai Health System, Los Angeles, California, USA. Electronic address: sumeet.chugh@cshs.org.
Kyndaron ReinierCenter for Cardiac Arrest Prevention, Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Health System, Los Angeles, California, USA.
Audrey Uy-EvanadoCenter for Cardiac Arrest Prevention, Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Health System, Los Angeles, California, USA.
Harpriya S ChughCenter for Cardiac Arrest Prevention, Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Health System, Los Angeles, California, USA.
David ElashoffDepartment of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA.
Christopher YoungVentura County Medical Examiner's Office, Ventura, California, USA.
Angelo SalvucciVentura County Health Care Agency, Ventura, California, USA.
Jonathan JuiDepartment of Emergency Medicine, Oregon Health and Science University, Portland, Oregon, USA.
Cedars-Sinai Smidt Heart Institute · USOregon Health & Science University · USUniversity of California, Los Angeles · USVentura County Health Care Agency · USVentura County Medical Center · US

Funding

Sudden Cardiac Death with Preserved Left Ventricular Ejection FractionR01HL126938 · NHLBI · CEDARS-SINAI MEDICAL CENTER · PI CHUGH, SUMEET S. · 2016 to 2019
$2.6M
Community-Based Evaluation of Sudden Cardiac Death in Hispanics/LatinosR01HL145675 · NHLBI · CEDARS-SINAI MEDICAL CENTER · PI CHUGH, SUMEET S. · 2019 to 2023
$2.4M
NHLBI NIH HHS R01 HL126938NHLBI NIH HHS R01 HL145675
6 · The paper itself

Abstract

objectivesThis study aimed to develop a novel clinical prediction algorithm for avertable sudden cardiac death.

backgroundSudden cardiac death manifests as ventricular fibrillation (VF)/ ventricular tachycardia (VT) potentially treatable with defibrillation, or nonshockable rhythms (pulseless electrical activity/asystole) with low likelihood of survival. There are no available clinical risk scores for targeted prediction of VF/VT.

methodsSubjects with out-of-hospital sudden cardiac arrest presenting with documented VF or pulseless VT (33% of total cases) were ascertained prospectively from the Portland, Oregon, metro area with population ≈1 million residents (n = 1,374, 2002-2019). Comparisons of lifetime clinical records were conducted with a control group (n = 1,600) with ≈70% coronary disease prevalence. Prediction models were constructed from a training dataset using backwards stepwise logistic regression and applied to an internal validation dataset. Receiver operating characteristic curves (C statistic) were used to evaluate model discrimination. External validation was performed in a separate, geographically distinct population (Ventura County, California, population ≈850,000, 2015-2020).

resultsA clinical algorithm (VFRisk) constructed with 13 clinical, electrocardiogram, and echocardiographic variables had very good discrimination in the training dataset (C statistic = 0.808; [95% CI: 0.774-0.842]) and was successfully validated in internal (C statistic = 0.776 [95% CI: 0.725-0.827]) and external (C statistic = 0.782 [95% CI: 0.718-0.846]) datasets. The algorithm substantially outperformed the left ventricular ejection fraction (LVEF) ≤35% (C statistic = 0.638) and performed well across the LVEF spectrum.

conclusionsAn algorithm for prediction of sudden cardiac arrest manifesting with VF/VT was successfully constructed using widely available clinical and noninvasive markers. These findings have potential to enhance primary prevention, especially in patients with mid-range or preserved LVEF.

Indexed as

Out-of-Hospital Cardiac ArrestTachycardia, VentricularArrhythmias, CardiacDeath, Sudden, CardiacHumansStroke VolumeVentricular FibrillationVentricular Function, Leftcardiac arrestpreventionrisk stratificationsudden cardiac deathventricular fibrillation

Identifiers

PMID35450595
PMCPMC9034059
OpenAlexW4221103959

What OpenQuestion holds

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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.