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Hypocalcemic cardiomyopathy as initial presentation of primary hypoparathyroidism
Sujithra Velayuthan1, Neslihan Gungor, Robert McVie
1Department of Pediatrics, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA.
Pediatrics International : Official Journal of the Japan Pediatric Society
|September 25, 2014
Summary
Hypoparathyroidism can cause a rare form of childhood cardiomyopathy. Early diagnosis and treatment of this condition significantly improved cardiac function in a young patient, preventing long-term complications.
Area of Science:
- Pediatric Cardiology
- Endocrinology
- Genetics
Background:
- Cardiomyopathy is a serious heart condition in children, often leading to poor outcomes.
- Dilated cardiomyopathy (DCM) in children is frequently caused by myocarditis, with heart transplantation often being the only viable treatment.
- Primary hypoparathyroidism is a rare endocrine disorder associated with cardiovascular complications.
Observation:
- A male infant presented with symptoms suggestive of cardiomyopathy.
- Laboratory investigations revealed significant hypocalcemia, indicative of primary hypoparathyroidism.
- Echocardiography confirmed dilated cardiomyopathy (DCM) in the infant.
Findings:
- The patient was diagnosed with hypocalcemic dilated cardiomyopathy secondary to primary hypoparathyroidism.
- Aggressive management of hypocalcemia and parathyroid hormone deficiency led to substantial improvement in cardiac function.
- At 10 years of age, the patient remains asymptomatic with near-normal cardiac function on echocardiography.
Implications:
- This case highlights primary hypoparathyroidism as a treatable cause of pediatric cardiomyopathy.
- Early diagnosis and intervention for hypocalcemic cardiomyopathy can prevent severe cardiac sequelae and improve long-term prognosis.
- Highlights the importance of considering endocrine disorders in the differential diagnosis of pediatric cardiomyopathy.
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