Approach to the Child with Hypercalcaemia

Area of Science:

• Pediatric Endocrinology
• Clinical Genetics
• Biochemistry

Background:

• Hypercalcemia is uncommon in children, unlike in adults where malignancy and primary hyperparathyroidism are frequent causes.
• Pediatric hypercalcemia presents diverse, age-specific etiologies, frequently with an underlying genetic basis.
• This condition can lead to severe end-organ damage, necessitating prompt and accurate diagnosis for effective management.

Purpose of the Study:

• To review recent advances in understanding pediatric hypercalcemia.
• To present a practical approach to the investigation and management of hypercalcemia in children.
• To categorize causes based on parathyroid hormone (PTH) levels, distinguishing between PTH-dependent and PTH-independent conditions.

Main Methods:

• Review of recent literature and clinical guidelines on pediatric hypercalcemia.
• Classification of hypercalcemia causes based on PTH levels.
• Discussion of diagnostic strategies and management pathways.

Main Results:

• Etiologies of pediatric hypercalcemia are varied and age-dependent, often with genetic underpinnings.
• Parathyroid hormone levels are key to differentiating causes (PTH-dependent vs. PTH-independent).
• A systematic approach aids in prompt diagnosis and appropriate treatment.

Conclusions:

• Effective management of pediatric hypercalcemia hinges on rapid and accurate diagnosis.
• Understanding the diverse and often genetic causes is essential for targeted treatment.
• Utilizing PTH levels provides a practical framework for investigating and managing pediatric hypercalcemia.