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Steroid-induced hypertrophic cardiomyopathy in an infant
Insights
High-dose steroids for infantile spasms may cause hypertrophic cardiomyopathy in infants. Echocardiograms are recommended during long-term steroid therapy to monitor heart function and structure.
Area of Science:
- Pediatric Cardiology
- Neonatal Medicine
- Pharmacology
Background:
- Infantile spasms and hypsarrhythmia are severe epilepsy syndromes in infants.
- Corticosteroids are a primary treatment for infantile spasms.
- Hypertrophic cardiomyopathy is a cardiac condition characterized by thickening of the heart muscle.
Observation:
- A 14-month-old boy treated with high-dose steroids for infantile spasms developed hypertrophic cardiomyopathy.
- Family history was negative for hypertrophic cardiomyopathy but positive for mitral valve prolapse.
- Cardiac function normalized within 12 months after steroid dosage reduction and discontinuation.
Findings:
- Long-term high-dose steroid therapy in infants can lead to reversible hypertrophic cardiomyopathy.
- Steroid-induced cardiomyopathy may be a potential side effect in pediatric patients.
- Echocardiography is crucial for monitoring cardiac changes during steroid treatment.
Implications:
- Pediatricians and cardiologists should consider steroid-induced cardiomyopathy in infants on long-term corticosteroid therapy.
- Regular echocardiographic monitoring is essential for early detection and management of cardiac abnormalities.
- This case highlights the importance of risk-benefit assessment in pediatric steroid treatment.
Abstract:
This report describes a 14-month-old boy receiving high-dose steroids for hypsarrhythmia and infantile spasms in whom the echocardiographic diagnosis of hypertrophic cardiomyopathy was made. Family studies were negative for hypertrophic cardiomyopathy, but positive for mitral valve prolapse. The steroid dosage was progressively decreased and finally discontinued; the echo was normal within 12 months. In infants receiving long-term steroid therapy, echocardiograms should be performed to monitor myocardial structure and function.