Heart failure & cardiomyopathies

Diagnostic and prognostic significance of miRNA-15a-5p, 16-5p, and 92a-3p in arrhythmogenic right ventricular cardiomyopathy

Heart RhythmPublished multisite study

Authors' conclusion

This study highlights miRNAs' potential to enhance the diagnosis, disease progression, and clinical outcomes of ARVC, supporting further research to improve patient care.

Study context

Population
Arrhythmogenic right ventricular cardiomyopathy (ARVC) patients, stratified by 5-year event-free survival risk, with Brugada syndrome (BrS) patients and healthy controlsARVC patients 102 · Brugada syndrome (BrS) patients 24 · healthy controls 22
Participants
102 / 24 / 22
Comparison
Circulating miRNA expression between high- and low-risk ARVC patients, and in ARVC compared with BrS patients and healthy controls
  • ARVC patientsn = 102
  • Brugada syndrome (BrS) patientsn = 24
  • Healthy controlsn = 22
Outcome
Differential miRNA expression between high- and low-risk ARVC patients

Main finding

As reported in the abstract

  • Six microRNAs (miRNAs) exhibited differential expression between high- and low-risk ARVC patients
  • MiR-15a-5p, miR-16-5p, and miR-92a-3p demonstrated the best performance in risk stratification

Further findings

MiR-15a-5p expression in patients with adverse cardiac events

MiR-15a-5p also displayed higher expression in patients with adverse cardiac events

miRNA expression in ARVC vs BrS patients and healthy controls

Increased expression of these miRNAs in ARVC

Original publication

Diagnostic and prognostic significance of miRNA-15a-5p, 16-5p, and 92a-3p in arrhythmogenic right ventricular cardiomyopathy. Heart Rhythm. Published 11 April 2025. doi:10.1016/j.hrthm.2025.04.014

Summarised from the published abstract; every number is checked against it

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