Cardiovascular aspects of primary hyperparathyroidism

Area of Science:

• Endocrinology
• Cardiology
• Internal Medicine

Background:

• Cardiovascular manifestations in primary hyperparathyroidism (PHPT) are inconsistently reported.
• Disease severity has decreased over time, potentially impacting observed cardiovascular findings.
• Hypertension is a known comorbidity associated with PHPT.

Purpose of the Study:

• To review and synthesize current data on cardiovascular manifestations in PHPT.
• To differentiate cardiovascular findings based on disease severity (symptomatic vs. mild hypercalcemia).
• To explore subtle cardiovascular changes in milder forms of PHPT.

Main Methods:

• Review of existing literature and cohort data on PHPT patients.
• Analysis of cardiovascular findings stratified by disease severity.
• Examination of endothelial function, vascular stiffness, and diastolic function.

Main Results:

• Symptomatic PHPT is associated with myocardial/vascular calcification and increased cardiovascular mortality.
• Mild hypercalcemia in PHPT is less likely to present overt cardiovascular issues.
• Subtle findings in mild PHPT include impaired endothelial function, increased vascular stiffness, and potential diastolic dysfunction.
• Left ventricular hypertrophy is a common finding across PHPT severity, possibly linked to hypertension.

Conclusions:

• Cardiovascular impact of PHPT varies with disease severity.
• While overt symptoms are rare in mild PHPT, subtle vascular and cardiac changes exist.
• Left ventricular hypertrophy is a consistent finding, often related to associated hypertension.