Hypoparathyroidism: from diagnosis to treatment

Area of Science:

• Endocrinology
• Metabolic Bone Disease
• Medical Genetics

Background:

• Hypoparathyroidism (HPT) is a disorder characterized by insufficient parathormone (PTH) production or action.
• Clinical manifestations range from asymptomatic hypocalcaemia to life-threatening metabolic disturbances.
• Understanding PTH and vitamin D physiology is crucial for managing HPT.

Purpose of the Study:

• To provide an updated review of hypoparathyroidism (HPT).
• To focus on the diagnosis, clinical manifestations, and management of hypocalcaemia in HPT patients.
• To highlight recent advances in understanding HPT pathogenesis and treatment.

Main Methods:

• Literature review of recent advances in HPT.
• Analysis of the physiologic actions of parathormone (PTH) and vitamin D.
• Integration of molecular genetics findings in HPT classification and management.

Main Results:

• Recent advances clarify HPT pathogenesis, classification, diagnosis, and management.
• Molecular genetics provides insights into disease causes, enabling genetic counseling and family screening.
• PTH actions include promoting bone resorption, decreasing urinary calcium, and increasing intestinal calcium absorption.

Conclusions:

• Understanding the molecular basis of HPT is key for personalized genetic counseling and treatment.
• HPT symptoms vary based on severity, chronicity, and underlying cause.
• While acute hypocalcaemia is manageable, chronic hypocalcaemia treatment is challenging; PTH replacement may be an option for refractory cases.