NDLI: Simulating the interactions among vasomotion waves of peripheral vascular districts

Content Provider	IEEE Xplore Digital Library
Author	Baselli, G. Porta, A.
Copyright Year	2002
Description	Author affiliation: Dept. of Bioeng., Politecnico di Milano, Milan, Italy (Baselli, G.; Porta, A.)
Abstract	Simulations are performed in order to analyze the tendency of oscillating peripheral vascular districts (PVDs) to maintain equal phases thus inducing low frequency (LF) waves in systemic arterial pressure (AP). A PVD model regulating the local flow by means of a delayed non-linear feedback displayed spontaneous oscillations with a 12 sec period in the pressure range (40-150 mmHg) of active flow compensation. Two identical PVDs loading the same windkessel compartment could oscillate in phase inducing significant (10% of mean) AP waves: however, this behavior was unstable. On the contrary, phase opposition (without AP waves) was stable and corresponded to an energetic minimum (-9 % compared to the unstable solution). The introduction of either baroreflex mechanisms or a central drive was able to steadily align the PVD phases. Vasomotion synchronization can be a powerful modulation mechanism of LF waves in systemic AP.
Starting Page	49
Ending Page	52
File Size	374686
Page Count	4
File Format	PDF
ISBN	0780377354
ISSN	02766547
DOI	10.1109/CIC.2002.1166704
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Baroreflex Atherosclerosis Delay Cardiology Arteries Hemodynamics Biomedical engineering Analytical models Frequency Blood pressure
Content Type	Text
Resource Type	Article

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