What does this research mean for the field?

Genetic re-evaluation of patients with arrhythmogenic cardiomyopathy can identify pathogenic DSP deletions, correcting previous misdiagnoses based on variants of uncertain significance and significantly altering family screening. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.SUPPORTS_CONSENSUS.

What question did this study set out to answer?

The study aims to clarify the genetic causes of sudden death in a young man with arrhythmogenic cardiomyopathy.

March 21, 2026European Journal of Preventive Cardiology0 citations

Uncovering Causes of Sudden Death Through Genetic Analysis and Imaging

PO64 Sudden Death: 10-Year Search for the Underlying Cause

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Population

1 patient, a 24-year-old man with a family history of sudden death, initially diagnosed with arrhythmogenic…

Design

Case_report

Follow-up

10 years

Key result

Genetic re-evaluation of a patient with arrhythmogenic cardiomyopathy identified a pathogenic DSP deletion, correcting a 10-year misdiagnosis of a PKP2 variant and altering family screening.

Authors

EMEmídio Mata BGBárbara Lage Garcia TPTamara N. Pereira

Discussion

Member takes

Overview

Re-evaluate ACM genetic variants periodically; extends evidence that reclassification can correct misdiagnoses and alter family screening.

Key Points

The study aims to clarify the genetic causes of sudden death in a young man with arrhythmogenic cardiomyopathy.
Genetic analysis of PKP2 and DSP genes
Cardiac imaging using MRI to assess heart function
Holter monitoring to evaluate arrhythmias
Clinical assessment including echocardiography
Initial identification of pathogenic and uncertain genetic variants in PKP2 and DSP genes
Progression of LV dysfunction from EF 48% to 38%; subsequent improvement to EF 56% after treatment
Discovery of a likely pathogenic DSP gene variant affecting cardiac function
In silico classification of PKP2 gene variant as uncertain highlights need for thorough genetic evaluation.

Structured PICO

Population

1 patient, a 24-year-old man with a family history of sudden death, initially diagnosed with arrhythmogenic cardiomyopathy (ACM) and later re-diagnosed with non-dilated cardiomyopathy with biventricular involvement.

Intervention

Re-evaluation with updated genetic testing and cardiac magnetic resonance imaging (CMR)

This case highlights the critical importance of periodically re-evaluating genetic variants and integrating them with clinical imaging, as a patient's diagnosis was fundamentally changed 10 years later, impacting both his management and family screening.

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Cite This Study

Mata et al. (2026) studied this question. Genetic re-evaluation of a patient with arrhythmogenic cardiomyopathy identified a pathogenic DSP deletion, correcting a 10-year misdiagnosis of a PKP2 variant and altering family screening.

synapsesocial.com/papers/69be38b56e48c4981c6794cd https://doi.org/10.1093/eurjpc/zwag115.063

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March 21, 2026European Journal of Preventive Cardiology0 citations

Uncovering Causes of Sudden Death Through Genetic Analysis and Imaging

PO64 Sudden Death: 10-Year Search for the Underlying Cause

View Full Paper

Population

1 patient, a 24-year-old man with a family history of sudden death, initially diagnosed with arrhythmogenic…

Design

Case_report

Follow-up

10 years

Key result

Genetic re-evaluation of a patient with arrhythmogenic cardiomyopathy identified a pathogenic DSP deletion, correcting a 10-year misdiagnosis of a PKP2 variant and altering family screening.

Authors

EMEmídio Mata BGBárbara Lage Garcia TPTamara N. Pereira

Discussion

Member takes

Overview

Re-evaluate ACM genetic variants periodically; extends evidence that reclassification can correct misdiagnoses and alter family screening.

Key Points

The study aims to clarify the genetic causes of sudden death in a young man with arrhythmogenic cardiomyopathy.
Genetic analysis of PKP2 and DSP genes
Cardiac imaging using MRI to assess heart function
Holter monitoring to evaluate arrhythmias
Clinical assessment including echocardiography
Initial identification of pathogenic and uncertain genetic variants in PKP2 and DSP genes
Progression of LV dysfunction from EF 48% to 38%; subsequent improvement to EF 56% after treatment
Discovery of a likely pathogenic DSP gene variant affecting cardiac function
In silico classification of PKP2 gene variant as uncertain highlights need for thorough genetic evaluation.

Structured PICO

Population

Intervention

Re-evaluation with updated genetic testing and cardiac magnetic resonance imaging (CMR)

Ask AI

Helpful

Bookmark

View Full Paper

Cite This Study

synapsesocial.com/papers/69be38b56e48c4981c6794cd https://doi.org/10.1093/eurjpc/zwag115.063

Ask AI

Helpful

Bookmark

View Full Paper