The power spectrum in an experimental model of ventricular fibrillation. Effects of the vagal stimulation

Author

Sierra, Gilberto ; Cabrera, Anastasia ; Martinez-Rubio, Antonio ; Fetsch, Thomas ; Reinhardt, Lutz ; Yli-Mayry, S. ; Borggrefe, Martin ; Breithardt, Günter

Author_Institution

Medizinische Klinik und Poliklinik, Westfalischen Wilhelms-Univ., Munster, Germany

Volume

1

fYear

1995

fDate

20-25 Sep 1995

Firstpage

361

Abstract

The aim of this study was to characterize the initial and final stages of the ventricular fibrillation in an experimental model using rabbits through the use of the power spectrum. In these animals the ventricular fibrillation spontaneously revert to sinus rhythm most of the time and the underlying mechanisms still require further investigation. The induction of ventricular fibrillation was performed by electrical stimulation. To assess the influence of the atrial rate, the same measurements were obtained under vagal stimulation. The final stage of ventricular fibrillation was characterized by a decrease of the dominant frequency and the kurtosis, and an increase of the mean power, compared with the initial stage with and without vagal stimulation

Keywords

electrocardiography; fast Fourier transforms; medical signal processing; spectral analysis; atrial rate; dominant frequency; electrical stimulation; kurtosis; mean power; power spectrum; rabbits; sinus rhythm; surface ECG; vagal stimulation; ventricular fibrillation; Animals; Electrical stimulation; Electrocardiography; Electrodes; Fibrillation; Frequency; Hospitals; Rabbits; Rhythm; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-2475-7

Type

conf

DOI

10.1109/IEMBS.1995.575150

Filename

575150