A Curious Case of Severe Recurrent Hypocalcemia

Area of Science:

• Endocrinology
• Genetics
• Metabolic Disorders

Background:

• Hypocalcemia, a condition of low blood calcium, has diverse etiologies, including hypoparathyroidism and vitamin D deficiency (VDD).
• Pseudohypoparathyroidism (PHP) is a rare genetic disorder characterized by resistance to parathyroid hormone (PTH).

Observation:

• A young female presented with severe hypocalcemia, hyperphosphatemia, and elevated PTH levels, complicated by coexisting VDD.
• Initial treatment with intravenous calcium and oral supplementation necessitated extended care and readmission.

Findings:

• Genetic analysis identified a variant in the CACNA1S gene, confirming a diagnosis related to PHP.
• The patient's condition stabilized following a meticulously adjusted treatment regimen and close medical supervision.

Implications:

• This case highlights the diagnostic challenges and prolonged management required for severe hypocalcemia, particularly when complicated by VDD.
• A systematic diagnostic approach, extended intravenous calcium administration, and vigilant monitoring are essential for managing pseudohypoparathyroidism and improving patient outcomes.