Evidence map›Paper›PMID 33383171›Full record

ReviewTrends in cardiovascular medicine2021

Viral myocarditis: 1917-2020: From the Influenza A to the COVID-19 pandemics.

Shereif H Rezkalla, Robert A Kloner

Open access · greenAbstract readReview
In one paragraph

Review in Trends in cardiovascular medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 2 pooled it
6.7field-weighted citation impact, top 2% 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

43 citing papers in PubMed, 2 syntheses or guidelines pooled it, 63 citations in OpenAlex.

  1. International journal of molecular sciences · 2025
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  12. Myocarditis mortality with and without COVID-19: insights from a national registry.Clinical research in cardiology : official journal of the German Cardiac Society · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

Shereif H RezkallaDepartment of Cardiology & Cardiovascular Research, Marshfield Clinic Health System, 1000 North Oak Avenue, Marshfield, WI 54449 USA; Adjunct Professor, University of Wisconsin, School of Medicine USA. Electronic address: rezkalla.shereif@marshfieldclinic.org.
Robert A KlonerChief Science Officer, Scientific Director of Cardiovascular Research Institute, Huntington Medical Research Institutes, Pasadena, CA USA; Professor of Medicine (Clinical Scholar), Cardiovascular Division, Dept. of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, CA USA. Electronic address: robert.kloner@hmri.org.
University of Southern California · USUniversity of Wisconsin–Madison · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Myocarditis is common during viral infection with cases described as early as the influenza pandemic of 1917, and the current COVID-19 pandemic is no exception. The hallmark is elevated troponin, which occurs in 36% of COVID patients, with electrocardiogram, echocardiogram, and cardiac magnetic resonance being valuable tools to assist in diagnosis. Cardiac inflammation may occur secondary to direct cardiac invasion with the virus, or to intense cytokine storm, often encountered during the course of the disease. Angiotensin converting enzyme inhibitors, angiotensin receptor blockers, and judicious use of beta-blockers are beneficial in management of myocarditis. Corticosteroids may be avoided during the very early phase of viral replication, but can be of clear benefit in hospitalized, critically ill patients. Statins are beneficial to shorten the course of the disease and may decrease mortality.

Indexed as

PandemicsCOVID-19HumansInfluenza A virusInfluenza, HumanMyocarditisCoronavirusCOVID-19MyocarditisPandemicTroponinViral infection

Identifiers

PMID33383171
PMCPMC7965406
OpenAlexW3113512852

What OpenQuestion holds

Textmetadata
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.