Positive phase values between cardiac cycle duration and systolic arterial pressure at respiratory rate are usually found in human subjects in supine position. Under the assumption that heart period lags behind systolic arterial pressure at negative phase values, positive phase values are traditionally interpreted as an indirect evidence of the presence of the feed-forward arm (from cardiac cycle duration to systolic arterial pressure). We propose to interpret the positive phase values between cardiac cycle length and systolic arterial pressure at respiratory frequency as an indirect evidence of influences capable of changing cardiac cycle duration independently of baroreflex. This interpretation does not exclude the traditional one but it stresses that positive phase values can be observed even in presence of a negligible contribution of the feed-forward path. © 2004 IEEE.

Porta, A., Bonizzato, S., Pizzinelli, P., Ferreri, C., Iellamo, F., Ferretti, G., et al. (2004). Indirect evidence for respiratory influences capable of changing RR interval independently of baroreflex. In Computers in Cardiology (pp.265-268).

Indirect evidence for respiratory influences capable of changing RR interval independently of baroreflex

IELLAMO, FERDINANDO;
2004-01-01

Abstract

Positive phase values between cardiac cycle duration and systolic arterial pressure at respiratory rate are usually found in human subjects in supine position. Under the assumption that heart period lags behind systolic arterial pressure at negative phase values, positive phase values are traditionally interpreted as an indirect evidence of the presence of the feed-forward arm (from cardiac cycle duration to systolic arterial pressure). We propose to interpret the positive phase values between cardiac cycle length and systolic arterial pressure at respiratory frequency as an indirect evidence of influences capable of changing cardiac cycle duration independently of baroreflex. This interpretation does not exclude the traditional one but it stresses that positive phase values can be observed even in presence of a negligible contribution of the feed-forward path. © 2004 IEEE.
Computers in Cardiology 2004
Chicago, IL
19 September 2004 through 22 September 2004
National Institutes of Health, USA;Evanston Northwestern Healthcare;European Society of Cardiology
Rilevanza internazionale
contributo
2004
Settore MED/09 - MEDICINA INTERNA
English
Biological organs; Muscle; Respiratory system; Arterial pressure; Baroreflex; Cardiac cycles; Respiratory influences; Cardiology
Intervento a convegno
Porta, A., Bonizzato, S., Pizzinelli, P., Ferreri, C., Iellamo, F., Ferretti, G., et al. (2004). Indirect evidence for respiratory influences capable of changing RR interval independently of baroreflex. In Computers in Cardiology (pp.265-268).
Porta, A; Bonizzato, S; Pizzinelli, P; Ferreri, C; Iellamo, F; Ferretti, G; Lucini, D; Pagani, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/36021
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