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Functional Characterization of Endogenously Expressed Human RYR1 Variants
Published on: June 9, 2021
Clinical spectrum of restrictive cardiomyopathy in children
S C Chen1, I C Balfour, S Jureidini
1Saint Louis University School of Medicine, Department of Pediatrics and Cardinal Glennon Children's Hospital, 1465 South Grand Blvd., St. Louis, MO 63104-1095, USA.
Insights
Restrictive cardiomyopathy in children has a poor prognosis, with high mortality rates within two years. Factors like younger age, respiratory issues, and specific cardiac conditions indicate a worse outcome, potentially necessitating cardiac transplantation.
Area of Science:
- Pediatric Cardiology
- Cardiovascular Research
- Clinical Medicine
Background:
- Restrictive cardiomyopathy (RCM) is a rare but serious condition in children.
- Understanding its clinical spectrum and prognostic factors is crucial for management.
Purpose of the Study:
- To review the clinical presentation and identify prognostic factors in pediatric restrictive cardiomyopathy.
- To assess outcomes and potential treatment indications.
Main Methods:
- Retrospective review of 14 pediatric patients diagnosed with restrictive cardiomyopathy.
- Analysis of clinical data, morphology, and outcomes.
Main Results:
- High mortality rate: 21.4% at 1 year and 50% at 2 years post-presentation.
- Clinical heterogeneity observed in patient presentation and cardiac morphology.
- Worse prognosis associated with younger age, respiratory symptoms, thromboembolism, increased cardiothoracic ratio, and endocardial fibroelastosis.
Conclusions:
- Pediatric restrictive cardiomyopathy carries a significant mortality risk.
- Several clinical and radiological factors predict a poorer prognosis.
- Orthotopic cardiac transplantation may be a necessary intervention for select patients.
Abstract:
We reviewed the clinical spectrum and possible prognostic factors in 14 children with restrictive cardiomyopathy. The patients were not homogeneous in clinical presentation or morphology. The mortality rate was high: 21.4% at 1 year and 50% at 2 years after presentation. Younger patients with respiratory symptoms, thromboembolism, increased cardiothoracic ratio on chest radiogram or patients with endocardial fibroelastosis appear to have a worse prognosis and orthotopic cardiac transplantation may be indicated.
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