Heart Rate Variability and Hyperthyroidism: Evaluation of the Short-term Effects of Propanolol
Status:
Completed
Trial end date:
2009-09-30
Target enrollment:
Participant gender:
Summary
Objective: The aim of our study was to evaluate the short term effects of Propanolol on heart
rate variability in patients with hyperthyroidism.
Design: In ten patients newly diagnosed as having hyperthyroidism and naïve of all treatment
specific for hyperthyroidism, we evaluated the short term effects of Propanolol on heart rate
variability (HRV).
Methods: We measured heart rate variability by power spectral analysis during 2 hours of rest
and during Ewing's tests before and after the administration of Propanolol 40mg/12 hours
orally for 72 hours.