PMID: 1638105Apr 1, 1992

Spectral analysis of heart rate variability in bronchial asthma

Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society
C S GarrardD Gordon

Abstract

Sympathetic and parasympathetic activity was evaluated in ten healthy controls, nine asymptomatic, untreated asthmatic subjects and ten asthmatic patients during treatment for acute asthma, by measurement of the variation in resting heart rate using frequency spectrum analysis. Heart rate was recorded by ECG and respiratory rate by impedance plethysmography. Spectral density of the beat-to-beat heart rate was measured within the low frequency band 0.04 to 0.10 Hz (low frequency power) modulated by sympathetic and parasympathetic activity, and within a 0.12 Hz band width at the respiratory frequency mode (respiratory frequency power) modulated by parasympathetic activity. Acute asthmatics had higher heart rates than either of the other two groups; this was probably related to the effects of beta-adrenoceptor agonist medication. Sympathetically mediated heart rate variability (normalized low frequency power) was significantly lower in both asymptomatic (p less than 0.002) and acute (p less than 0.02) asthma subjects compared to controls. This is consistent with altered sympathetic/parasympathetic regulation of heart rate in subjects with bronchial asthma.

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Citations

Feb 1, 1993·Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society·C S GarrardM Piepoli
Jul 5, 1996·Journal of the Autonomic Nervous System·M PaganiA Malliani
Aug 25, 2012·Lung India : Official Organ of Indian Chest Society·Mohamed F Lutfi
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Nov 6, 2010·Journal of Clinical Nursing·Yueh-Shia TsaiChii Jeng
Aug 27, 2014·The Journal of Asthma : Official Journal of the Association for the Care of Asthma·Adriana Sanches Garcia-AraújoAudrey Borghi-Silva
Jan 12, 2019·Physiological Reports·Amit LehaviAeyal Raz
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Mar 17, 2020·Frontiers in Physiology·Plamen BokovChristophe Delclaux
Jul 22, 2005·The Journal of Asthma : Official Journal of the Association for the Care of Asthma·Michael B AnthracopoulosNicholas G Beratis

Related Concepts

Asthma
Electrocardiographic Recorders
Forced Expiratory Volume Function
Pulse Rate
Parasympathetic Nervous System
Sympathetic Nervous System
Respiratory Mechanics

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