Primary hyperparathyroidism and heart disease--a review

Area of Science:

• Endocrinology
• Cardiology
• Nephrology

Background:

• Primary hyperparathyroidism (pHPT) results from excess parathyroid hormone (PTH) production, leading to hypercalcemia.
• Common complications include renal stones, osteoporosis, and hypercalcemia symptoms.
• Modern diagnosis often occurs in early, asymptomatic stages, but symptomatic pHPT is linked to increased mortality, particularly cardiovascular death.

Purpose of the Study:

• To review and clarify the association between primary hyperparathyroidism and cardiac disease.
• To explore the impact of pHPT on cardiac structure and function.

Main Methods:

• Literature review of studies investigating pHPT and cardiovascular outcomes.
• Analysis of in vitro studies and clinical observations on cardiac abnormalities in pHPT patients.

Main Results:

• pHPT is associated with hypertension, vascular wall alterations, and renin-angiotensin-aldosterone system disturbances.
• Increased prevalence of cardiac structural abnormalities, including left ventricular hypertrophy (LVH) and valvular/myocardial calcification, observed in pHPT.
• Associations noted between PTH levels, LVH, and serum calcium; LV systolic function appears unaffected, but diastolic function requires further study.

Conclusions:

• Primary hyperparathyroidism is associated with significant cardiovascular risks and structural heart changes.
• Further research is needed to fully understand the impact of pHPT on left ventricular diastolic function.