PMID: 9662484Jul 15, 1998Paper

Autonomic modulation of heart rate and blood pressure in hypertensive subjects with symptoms of anxiety

Clinical Science
G PiccirilloV Marigliano

Abstract

1. The influence of anxiety symptoms on autonomic nervous system cardiovascular control has never been studied in hypertensive subjects. This study was designed to verify the presence of sympathetic hyperactivity in hypertension associated with anxiety symptoms. 2. Neuroautonomic cardiovascular control was evaluated using short-time power spectral analysis of RR and arterial pressure variability at baseline and after the head-up tilt test. The two spectral components principally influenced by the autonomic nervous system are the low-frequency (LF) component, mainly though not exclusively due to sympathetic modulation, and the high-frequency (HF) component, due to parasympathetic activity. The ratio of LF to HF powers (LF:HF) provides an index of the sympathovagal sinus balance. 3. We studied 33 hypertensive subjects (mean age 47+/-1 years; M:F=19:14) and 37 normotensive control subjects (mean age: 47+/-2 years; M:F=20:17) divided into four subgroups: hypertensive subjects who scored 2 or more on a 5-item anxiety symptom scale, hypertensive subjects who scored 0, normotensive controls who scored 2 or more and normotensive controls who scored 0. LF:HF and LF during rest were significantly higher (P<0.05) in hypertensive and normo...Continue Reading

Citations

Dec 13, 2000·The American Journal of Cardiology·G PiccirilloM Cacciafesta
Sep 14, 2001·Journal of the American Geriatrics Society·G PiccirilloM Cacciafesta
Sep 23, 2008·European Journal of Neurology : the Official Journal of the European Federation of Neurological Societies·G PiccirilloM T Dotti
Jul 28, 2007·European Journal of Haematology·Damiano MagrìGianfranco Piccirillo
Mar 1, 2000·The Journal of Laboratory and Clinical Medicine·G PiccirilloV Marigliano
Sep 23, 2006·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Peter Jönsson
Aug 6, 2005·International Journal of Cardiology·Gianfranco PiccirilloAntonio Moisè

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