Normalized dyslipidaemia after parathyroidectomy in mild primary hyperparathyroidism: population-based study over...

Area of Science:

• Endocrinology
• Cardiovascular Health
• Metabolic Disorders

Background:

• Postmenopausal women face a higher risk of primary hyperparathyroidism (pHPT).
• Dyslipidaemia associated with pHPT is understudied despite links to cardiovascular disease (CVD) and mortality.
• Mild, asymptomatic pHPT warrants investigation for its metabolic and cardiovascular implications.

Purpose of the Study:

• To investigate the lipid profiles in postmenopausal women with mild, asymptomatic primary hyperparathyroidism.
• To assess the impact of parathyroidectomy on dyslipidaemia in these patients.
• To compare the outcomes of surgical intervention versus conservative surveillance for mild pHPT.

Main Methods:

• A population-based screening identified postmenopausal women with mild, asymptomatic pHPT and matched controls.
• Serum lipids and lipoprotein fractions were analyzed in 87 case-control pairs.
• A 5-year follow-up was conducted on 69 participants, examining the effects of parathyroidectomy and surveillance.

Main Results:

• pHPT was associated with lower HDL-cholesterol, higher triglycerides (total and VLDL), and increased atherogenic index.
• These lipid abnormalities were more pronounced with normal parathyroid hormone levels and inversely correlated with hormone levels.
• Parathyroidectomy normalized dyslipidaemia; 5-year surveillance showed persistent adverse lipid changes.

Conclusions:

• Mild primary hyperparathyroidism is characterized by a proatherosclerotic dyslipidaemia.
• Parathyroidectomy effectively reverses these lipid abnormalities.
• Surgical intervention is favored over surveillance for mild, asymptomatic pHPT in postmenopausal women due to potential cardiovascular benefits.