Evidence map›Paper›PMID 40623892›Full record

ArticleOpen heart2025

Contemporary study of acute myocarditis in South Africa: CAMISA.

Karim Hassan, Anton Doubell, Charles Kyriakakis, Lloyd Joubert, Dan Zaharie, Gert Van Zyl, Rory Leisegang, Philip Herbst

Abstract read
In one paragraph

Article in Open heart, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Review
  2. Article
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

8 authors.

Karim HassanDivision of Cardiology, Department of Medicine, Stellenbosch University Faculty of Medicine and Health Sciences, Cape Town, Western Cape, South Africa hsskar@gmail.com.ORCID http://orcid.org/0000-0002-1141-9486
Anton DoubellDivision of Cardiology, Department of Medicine, Stellenbosch University Faculty of Medicine and Health Sciences, Cape Town, Western Cape, South Africa.
Charles KyriakakisDivision of Cardiology, Department of Medicine, Stellenbosch University Faculty of Medicine and Health Sciences, Cape Town, Western Cape, South Africa.
Lloyd JoubertDivision of Cardiology, Department of Medicine, Stellenbosch University Faculty of Medicine and Health Sciences, Cape Town, Western Cape, South Africa.
Dan ZaharieDivision of Anatomical Pathology, National Health Laboratory Services, Tygerberg Hospital, Cape Town, Western Cape, South Africa.
Gert Van ZylDivision of Medical Virology, National Health Laboratory Services, Tygerberg Hospital, Cape Town, Western Cape, South Africa.
Rory LeisegangDivision of Paediatrics and Child Health, Stellenbosch University Faculty of Medicine and Health Sciences, Cape Town, Western Cape, South Africa.
Philip HerbstDivision of Cardiology, Department of Medicine, Stellenbosch University Faculty of Medicine and Health Sciences, Cape Town, Western Cape, South Africa.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThis study aims to determine the clinical presentations, aetiologies and outcomes of patients presenting with acute myocarditis (AM) in South Africa.

methodsThis is a prospective cohort study. Consecutive patients presenting to Tygerberg Hospital, Cape Town, South Africa, between August 2017 and November 2021 who fulfilled the European Society of Cardiology diagnostic criteria for clinically suspected myocarditis undergoing all recommended investigations, including cardiac MRI (CMR) and endomyocardial biopsy (EMB), were included.

results111 cases (mean age 41.2 years, 66.3% male) of clinically suspected myocarditis were recruited. AM was confirmed in 89: 44 (49.4%) on CMR only, 16 (18.0%) on EMB only and 29 (32.6%) on both CMR and EMB. 46 (51.7%) presented with infarct-like symptoms, 31 (34.8%) presented with heart failure (HF), 8 (9.0%) with sustained ventricular tachycardia (VT) and 4 (4.5%) with complete heart block (CHB). Viral pathogens were detected in 52 (58.4%) patients with AM, with Parvovirus B19 the most frequent in 39 (75.0%) as monoinfection and as coinfection in 4 (3 (5.8%) with Epstein-Barr virus (EBV) and 1 (1.9%) with EBV and human herpesvirus 6. The prespecified adverse outcome, defined as the occurrence of major adverse clinical events, including cardiac death, documented sustained VT, recurrence of AM and HF hospitalisation, occurred in 30.3%. Initial presentation with sustained VT (HR 5.36, 95% CI 1.76 to 16.33, p=0.003) or CHB (HR 5.67, 95% CI 1.38 to 23.26, p=0.016) was a significant predictor of adverse outcome on multivariate analysis.

conclusionWe report data from the largest cohort of patients with AM outside of the developed world. It provides insight into the clinical presentation, aetiology, viral pathogens and outcomes of patients with AM locally. The findings in this cohort from Africa appear similar to the developed world.

Indexed as

Magnetic Resonance Imaging, CineMyocarditisMyocardiumAcute DiseaseAdultBiopsyFemaleFollow-Up StudiesHumansMaleMiddle AgedProspective StudiesSouth AfricaCardiac CatheterizationHeart Failure, SystolicMagnetic Resonance ImagingMyocarditisTachycardia, Ventricular

Identifiers

PMID40623892
PMCPMC12258367

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LicenceCC BY-NC
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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.