Evidence map›Paper›PMID 37730763›Full record

ArticleCardio-oncology (London, England)2023

Complete heart block is a significant predictor of mortality in immune checkpoint inhibitor myocarditis.

Michael P O'Shea, Suganya Arunachalam Karikalan, Ali Yusuf, Timothy Barry, Eiad Habib, John O'Shea, Michael Killian, Eman Baqal, Srishti Nayak, Rajeev Masson and 4 more

Open access · goldAbstract read
In one paragraph

Article in Cardio-oncology (London, England), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
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  15. Immune checkpoint inhibitor-associated myocarditis: a historical and comprehensive review.American journal of physiology. Heart and circulatory physiology · 2025
    Review
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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

14 authors at 3 institutions in 2 countries.

Michael P O'SheaDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA. oshea.michael@mayo.edu.
Suganya Arunachalam KarikalanDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
Ali YusufDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
Timothy BarryDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
Eiad HabibDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
John O'SheaSaint James's Hospital, Dublin, Ireland.
Michael KillianDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
Eman BaqalDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
Srishti NayakDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
Rajeev MassonDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
Joerg HermannMayo Clinic Rochester, Rochester, MN, USA.
Shimoli ShahDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
Chadi AyoubDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
Hicham El MasryDepartment of Cardiovascular Medicine, Mayo Clinic, 5777 E Mayo Boulevard, Phoenix, AZ, 85054, USA.
Mayo Clinic in Arizona · USMayo Clinic · USSt. James's Hospital · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundImmune checkpoint inhibitor (ICI) myocarditis is associated with significant mortality risk. Electrocardiogram (ECG) changes in ICI myocarditis have strong prognostic value. However the impact of complete heart block (CHB) is not well defined. This study sought to evaluate the impact of CHB on mortality in ICI myocarditis, and to identify clinical predictors of mortality and CHB incidence.

methodsWe conducted a retrospective cohort study of patients with ICI myocarditis at three Mayo Clinic sites from 1

resultsOf 34 identified cases of ICI myocarditis, 7 (20.6%) had CHB. CHB was associated with higher mortality (HR 7.41, p = 0.03, attributable fraction 86.5%). Among those with CHB, troponin T (TnT) < 1000 ng/dL, low white blood cell count and high ventricular rate at admission were protective. There was trend towards increased survival among patients who underwent permanent pacemaker insertion (p = 0.051), although most experienced device lead complications. Factors associated with development of CHB included prolonged PR and QRS intervals and low Sokolow Lyon Index. Where these were normal and TnT was < 1000 ng/dL, no deaths occurred. Impaired myocardial longitudinal strain was sensitive for ICI myocarditis but was not prognostically significant.

conclusionThere is a strong temporal association between CHB and early mortality in people with ICI myocarditis. Focusing on arrhythmogenic complications can be helpful in predicting outcomes for this group of critically ill individuals.

Indexed as

ArrhythmiasComplete heart blockImmune checkpoint inhibitorsMyocarditisPharmacoepidemiology

Identifiers

PMID37730763
PMCPMC10510176
OpenAlexW4386891993

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.