Increased risk of cardiac death in primary hyperparathyroidism: what is a role of electrical instability?

Background: Increased risk of death in patients with primary hyperparathyroidism (PHPT) is referred to cardiovascular complications induced by hypercalcemia. At the moment the role of bioelectrical risk and of enhanced sympathetic activity, not related to cardiovascular complications, is unknown in PHPT patients.

Methods: The study was designed to evaluate the QT parameters and sympathovagal balance in 28 PHPT uncomplicated patients compared to 29 healthy subjects (HS).