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Heart rate variability analysis in postural orthostatic tachycardia syndrome: a case report

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Author(s): Vincenzo Russo | Ilaria De Crescenzo | Ernesto Ammendola | Carolina Pagano | Cristina Savarese | Lucio Santangelo | Raffaele CalabrĂ²

Journal: Heart International
ISSN 1826-1868

Volume: 2;
Issue: 2;
Date: 2006;
Original page

Keywords: Postural orthostatic tachycardia syndrome | POTS | Sympathovagal balance | Heart rate variability | HRV

ABSTRACT
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.
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