Identifying Clinical Characteristics of Hypoparathyroidism in Turkey: HIPOPARATURK-NET Study

Area of Science:

• Endocrinology
• Metabolic Diseases
• Public Health

Background:

• Hypoparathyroidism is an orphan endocrine disorder with poorly defined epidemiology.
• Geographic variations in hypoparathyroidism prevalence and characteristics are noted.

Purpose of the Study:

• To investigate the demographics, causes, treatment patterns, and complications of chronic hypoparathyroidism in Turkey.
• To compare characteristics and disease burden between postsurgical and nonsurgical hypoparathyroidism patients.

Main Methods:

• Retrospective, cross-sectional database study involving 830 adult patients from 30 endocrinology centers across Turkey.
• Data collected on patient demographics, etiology, treatment regimens (calcium, calcitriol, cholecalciferol, parathyroid hormone), serum calcium levels, and complication frequency.

Main Results:

• Post-surgical hypoparathyroidism accounted for 82.6% of cases, primarily due to benign surgeries.
• Nonsurgical hypoparathyroidism patients exhibited lower PTH levels, higher medication needs (calcium, calcitriol), and increased rates of chronic renal disease, epilepsy, intracranial calcifications, and cataracts.
• Standard treatment relied heavily on calcium salts and calcitriol, with low use of parathyroid hormone replacement therapy.

Conclusions:

• Post-surgical hypoparathyroidism is the predominant etiology in Turkey.
• Nonsurgical hypoparathyroidism presents a greater clinical challenge with a higher disease burden and increased risk of complications.
• Current treatment strategies for hypoparathyroidism in Turkey are heavily reliant on conventional therapies, with limited use of parathyroid hormone.