NDLI: Cardiorespiratory interactions during slow (<0.4 Hz) changes of respiratory activity

Content Provider	IEEE Xplore Digital Library
Author	Pinna, G.D. Maestri, R. La Rovere, M.T. Prpa, A. Mortara, A.
Copyright Year	1998
Description	Author affiliation: Dept. of Biomed. Eng., Rehabilitation Inst. of Montescano, Pavia, Italy (Pinna, G.D.)
Abstract	In this work the authors used a multi-parametric approach and spectral analysis techniques to investigate cardio-respiratory interactions during spontaneous Periodic Breathing (PB) in 30 chronic heart failure patients and volitional PB in 16 normal subjects. The authors acquired supine resting recordings of instantaneous lung volume (ILV), heart rate, O/sub 2/ saturation at the ear and systolic and diastolic arterial pressure. An instantaneous tidal volume signal was derived from the ILV signal. In both groups the authors found strong evidence of a generalized cardiorespiratory rhythm at /spl ap/0.02 Hz, the frequency of PB, which accounted for most of the variability of all cardiovascular signals. Phase and timing relationships between signals at the frequency of PB were markedly different in the two groups providing important insights into the complex links between respiration and circulation at very low (<0.04 Hz) frequencies.
Starting Page	109
Ending Page	112
File Size	380700
Page Count	4
File Format	PDF
ISBN	0780352009
ISSN	02766547
DOI	10.1109/CIC.1998.731740
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-09-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cardiology Heart rate Frequency Spectral analysis Blood pressure Lungs Ear Digital audio players Biomedical engineering Rhythm
Content Type	Text
Resource Type	Article

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