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[Pseudohypoparathyroidism]

L M Robertson1, T Pasqualini

  • 1Departamento de Pediatría, Hospital Italiano, Buenos Aires.

Medicina
|January 1, 1995
PubMed
Summary
This summary is machine-generated.

A 5-year-old boy with pseudohypoparathyroidism experienced tetany due to hypocalcemia and hyperphosphatemia. Treatment with calcium and vitamin D supplements proved effective for this condition characterized by parathyroid hormone resistance.

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Area of Science:

  • Pediatric Endocrinology
  • Biochemistry
  • Genetics

Background:

  • Pseudohypoparathyroidism is a rare genetic disorder characterized by resistance to parathyroid hormone (PTH).
  • It presents with biochemical hallmarks of hypoparathyroidism, including low calcium and high phosphate levels.
  • This case highlights the diagnostic and management considerations in a pediatric patient.

Observation:

  • A 5-year-old boy with a normal phenotype and renal function presented with tetany.
  • Serial measurements revealed hypocalcemia, hyperphosphatemia, and elevated serum parathyroid hormone (PTH) levels.
  • These findings are consistent with pseudohypoparathyroidism.

Findings:

  • The patient was diagnosed with pseudohypoparathyroidism based on clinical and biochemical data.

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  • The condition involves peripheral resistance to PTH, despite adequate hormone levels.
  • Effective treatment was achieved using calcium and vitamin D supplementation.

    • Implications:

    • This case underscores the importance of recognizing pseudohypoparathyroidism in children presenting with hypocalcemia and hyperphosphatemia.
    • Early diagnosis and appropriate management with calcium and vitamin D are crucial for preventing complications.
    • Understanding the physiopathology of PTH resistance is key to managing this disorder.