Heart failure & cardiomyopathies
MYH7 Mutations in Restrictive Cardiomyopathy
Authors' conclusion
Genetic variations, particularly in the MYH7 gene, are significant risk factors for RCM progression and HTx. Genetic screening may guide early interventions, while fibrosis and MYH7 pathways offer potential therapeutic targets.
Study context
- Population
- Restrictive cardiomyopathy (RCM) patients from Fuwai Hospital (2003–2021), diagnosed via echocardiography or pathological examination
- Participants
- 94 RCM patients
- Exposure
- Patients with MYH7 mutations compared to nonmutation patients; HTx patients compared to non-HTx patients
- Outcome
- Genetic variants identified
Methodological detailswhole exome sequencing, validated via Sanger sequencing, histopathological analysis of explanted hearts
- Whole exome sequencing
- Validated via Sanger sequencing
- Histopathological analysis of explanted hearts
Main finding
As reported in the abstract
- Genetic variants identified in patients
- 54%
Observational data: associations, not effects.
Further findings
| Outcome | HTx patients | non-HTx patients |
|---|---|---|
| Age at diagnosisMean, years | 36.0 | 57.9 |
| Age at transplantation (mean) | 37.4 years | — not stated in the abstract |
— not stated in the abstract
- Fibrosis in the interventricular septum · MYH7 mutations vs nonmutation patients · extensive fibrosis with MYH7 mutations
- P < 0.05
- Age at diagnosis — Mean age at diagnosis, all patients
- 47.8 years
MYH7 mutations
- MYH7 mutations found in cases
- 15%
- Association with HTx
- P < 0.001
- Association with atrial fibrillation
- P = 0.025
Follow-up
- Median follow-up time
- 5 years
Original publication
MYH7 Mutations in Restrictive Cardiomyopathy. JACC Adv. Published 25 April 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →