Signal analysis of rhythmical discharge in cardiac preganglionic fibers and of heart rate variability

G. Baselli, S. Cerutti, L. M. Finocchiaro, F. Lombardi, A. Malliani, N. Montano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A signal processing technique is proposed for the extraction of short-term variability rhythms from the discharge of cardiac sympathetic fibers. In decerebrated and artificially ventilated cats the impulse activity of cardiac preganglionic fibers was recorded in a closed chest preparation together with ECG, arterial pressure, and respiration. The neural signal was fed into an analog spike counter, obtaining a stepwise count signal. Beat-by-beat variability series were extracted; the spike-count signal is sampled once per cardiac cycle convolving with a FIR low-pass filter. The presence of low-frequency and high-frequency rhythms was demonstrated by parametric spectral and cross-spectral analyses.

Original languageEnglish
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
EditorsYongmin Kim, Francis A. Spelman
PublisherPubl by Alliance for Engineering in Medicine & Biology
Pages10-11
Number of pages2
Volume11 pt 1
Publication statusPublished - Nov 1989
EventImages of the Twenty-First Century - Proceedings of the 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 - Seattle, WA, USA
Duration: Nov 9 1989Nov 12 1989

Other

OtherImages of the Twenty-First Century - Proceedings of the 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1
CitySeattle, WA, USA
Period11/9/8911/12/89

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ASJC Scopus subject areas

  • Bioengineering

Cite this

Baselli, G., Cerutti, S., Finocchiaro, L. M., Lombardi, F., Malliani, A., & Montano, N. (1989). Signal analysis of rhythmical discharge in cardiac preganglionic fibers and of heart rate variability. In Y. Kim, & F. A. Spelman (Eds.), Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 11 pt 1, pp. 10-11). Publ by Alliance for Engineering in Medicine & Biology.