Title | Heart rate variability analysis in postural orthostatic tachycardia syndrome: a case report. | ||
Author | Russo, Vincenzo; DE Crescenzo, Ilaria; Ammendola, Ernesto; Pagano, Carolina; Savarese, Cristina; Santangelo, Lucio; Calabro, Raffaele | ||
Journal | Heart Int | Publication Year/Month | 2006 |
PMID | 21977261 | PMCID | PMC3184666 |
Affiliation | 1.Department of Cardiology, Second University of Naples, Naples - Italy. |
The authors present a case of 36 year old male patient with idiopathic postural orthostatic tachycardia syndrome (POTS) diagnosed during head-up tilt testing. Power spectral analysis of heart rate variability (HRV) during the tilt test revealed that the ratio of low and high frequency powers (LF/HF) increased with the onset of orthostatic intolerance. This analysis confirmed in our patient a strong activation in sympathetic tone.