Sympathovagal balance analysis in idiopathic postural orthostatictachycardia syndrome
Keywords:
Postural orthostatic tachycardia sindrome (POTS), sympathovagal balance, heart rate variability (HRV), Head up tilt testAbstract
The idiopathic postural tachycardia syndrome (POTS) is a complex disorder characterized by chronic orthostatic symptoms and an increase in heart rate within 10 minutes of standing on upright posture, without significant orthostatic hypotension.We describe a case of a 36 year-old patient with POTS, diagnosed by head-up tilt testing. Power spectral analysis of heart rate variability (HRV), performed during the tilt test, revealed the ratio of low and high frequency powers (LF/HF) that increased with the onset of orthostatic intolerance. The increase in LF/HF power ratio may represent sympathetic beta-receptors hyperactivity. Atenolol alleviated his clinical symptoms.Downloads
Published
01-08-2007
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Section
CASE REPORTS
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How to Cite
1.
Russo V, De Crescenzo I, Ammendola, et al. E. Sympathovagal balance analysis in idiopathic postural orthostatictachycardia syndrome. Acta Biomed. 2007;78(2):133-138. Accessed February 24, 2025. https://mattioli1885journals.com/index.php/actabiomedica/article/view/1916
