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Published on: August 8, 2022
Restrictive cardiomyopathy in childhood
Susan W Denfield1, Steven A Webber
1Lillie Frank Abercrombie Division of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, 6621 Fannin MC-19345C, Houston, TX 77030, USA. swdenfie@texaschildrenshospital.org
Insights
Pediatric restrictive cardiomyopathy is a rare heart condition with poor outcomes. This review covers its causes, diagnosis, and management in children.
Area of Science:
- Pediatric Cardiology
- Cardiovascular Research
Background:
- Restrictive cardiomyopathy (RCM) in children is rare globally.
- It can be idiopathic or secondary to endomyocardial fibrosis, particularly in endemic regions.
- RCM in pediatric patients carries a poor prognosis once symptoms manifest.
Purpose of the Study:
- To provide a comprehensive review of pediatric restrictive cardiomyopathy.
- To cover definitions, epidemiology, etiologies, genetics, phenotypes, clinical presentation, diagnosis, outcomes, and management.
- To consolidate current knowledge on this rare pediatric condition.
Main Methods:
- Literature review of pediatric restrictive cardiomyopathy.
- Synthesis of data on definitions, epidemiology, and etiologies.
- Compilation of information on genetics, clinical presentation, and diagnostic approaches.
Main Results:
- RCM in childhood is either rare and idiopathic or linked to endomyocardial fibrosis.
- The condition has a poor prognosis after symptom onset, irrespective of the cause.
- Genetic factors and "overlap" phenotypes contribute to the complexity of RCM.
Conclusions:
- Early diagnosis and appropriate management are crucial for improving outcomes in pediatric RCM.
- Further research into the poorly understood etiologies, particularly endomyocardial fibrosis, is warranted.
- Understanding the genetic basis and diverse phenotypes is key to effective RCM care in children.
Abstract:
Depending on the part of the world one lives in, restrictive cardiomyopathy is either one of the rarest forms of cardiomyopathy in childhood, with no cause usually identified, or it is secondary to a poorly understood disease, endomyocardial fibrosis, that is endemic in some populations. Regardless of the underlying cause, the outcome is poor once symptoms develop. This article reviews the definitions, epidemiology, etiologies, genetics, "overlap" phenotypes, clinical presentation, diagnostic evaluation, outcome, and management of pediatric patients with restrictive cardiomyopathy.
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