Evidence map›Paper›PMID 34120755›Full record

ArticleMayo Clinic proceedings2021

Artificial Intelligence-Augmented Electrocardiogram Detection of Left Ventricular Systolic Dysfunction in the General Population.

Anthony H Kashou, Jose R Medina-Inojosa, Peter A Noseworthy, Richard J Rodeheffer, Francisco Lopez-Jimenez, Itzhak Zachi Attia, Suraj Kapa, Christopher G Scott, Alexander T Lee, Paul A Friedman and 1 more

Open access · greenAbstract readValidation Study
In one paragraph

Article in Mayo Clinic proceedings, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 5% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

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  14. Deep learning to predict left ventricular hypertrophy from the electrocardiogram.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 · 2026
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  18. [AI-enabled clinical decision support systems: challenges and opportunities].Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2025
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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 at 2 institutions in 1 country.

Anthony H KashouDepartment of Medicine, Mayo Clinic, Rochester, MN.
Jose R Medina-InojosaDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Peter A NoseworthyDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Richard J RodehefferDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Francisco Lopez-JimenezDepartment of Medicine, Mayo Clinic, Rochester, MN.
Itzhak Zachi AttiaDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Suraj KapaDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Christopher G ScottDivision of Biostatistics, Mayo Clinic, Rochester, MN.
Alexander T LeeDivision of Biostatistics, Mayo Clinic, Rochester, MN.
Paul A FriedmanDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Paul M McKieDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN. Electronic address: mckie.paul@mayo.edu.
Mayo Clinic in Arizona · USMayo Clinic · US

Funding

Rochester Epidemiology ProjectR01AG034676 · NIA · MAYO CLINIC ROCHESTER · PI ROCCA, WALTER A, ST SAUVER, JENNIFER LYNN · 2010 to 2019
$9.5M
Interdisciplinary Infrastructure for Aging Research: Rochester Epidemiology ProjectR33AG058738 · NIA · MAYO CLINIC ROCHESTER · PI LEBRASSEUR, NATHAN K, OLSON, JANET E · 2020 to 2022
$2.4M
NIA NIH HHS R01 AG034676NIA NIH HHS R33 AG058738
6 · The paper itself

Abstract

objectiveTo validate an artificial intelligence-augmented electrocardiogram (AI-ECG) algorithm for the detection of preclinical left ventricular systolic dysfunction (LVSD) in a large community-based cohort.

methodsWe identified a randomly selected community-based cohort of 2041 subjects age 45 years or older in Olmsted County, Minnesota. All participants underwent a study echocardiogram and ECG. We first assessed the performance of the AI-ECG to identify LVSD (ejection fraction ≤40%). After excluding participants with clinical heart failure, we further assessed the AI-ECG to detect preclinical LVSD among all patients (n=1996) and in a high-risk subgroup (n=1348). Next we modelled an imputed screening program for preclinical LVSD detection where a positive AI-ECG triggered an echocardiogram. Finally, we assessed the ability of the AI-ECG to predict future LVSD. Participants were enrolled between January 1, 1997, and September 30, 2000; and LVSD surveillance was performed for 10 years after enrollment.

resultsFor detection of LVSD in the total population (prevalence, 2.0%), the area under the receiver operating curve for AI-ECG was 0.97 (sensitivity, 90%; specificity, 92%); in the high-risk subgroup (prevalence 2.7%), the area under the curve was 0.97 (sensitivity, 92%; specificity, 93%). In an imputed screening program, identification of one preclinical LSVD case would require 88.3 AI-ECGs and 8.7 echocardiograms in the total population and 65.7 AI-ECGs and 5.5 echocardiograms in the high-risk subgroup. The unadjusted hazard ratio for a positive AI-ECG for incident LVSD over 10 years was 2.31 (95% CI, 1.32 to 4.05; P=.004).

conclusionArtificial intelligence-augmented ECG can identify preclinical LVSD in the community and warrants further study as a screening tool for preclinical LVSD.

Indexed as

Artificial IntelligenceElectrocardiographyAlgorithmsEchocardiographyFemaleHumansMaleMiddle AgedSensitivity and SpecificityVentricular Dysfunction, LeftVentricular Function, Left

Identifiers

PMID34120755
PMCPMC9904428
OpenAlexW3167842829

What OpenQuestion holds

Textmetadata
LicenceTDM
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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.