Estimation of baroreflex sensitivity during anesthesia induction with propofol.

作者信息

Mendez Guadalupe Dorantes, Aletti Federico, Toschi Nicola, Canichella Antonio, Coniglione Filadelfo, Sabato Elisabetta, della Badia Giussi Florencia, Dauri Mario, Sabato Alessandro F, Guerrisi Maria, Baselli Giuseppe, Signorini Maria G, Cerutti Sergio, Ferrario Manuela

机构信息

Dipartimento di Bioingegneria, Politecnico di Milano, Piazza Leonardo da Vinci 23, 20133 Milan, Italy.

出版信息

Annu Int Conf IEEE Eng Med Biol Soc. 2011;2011:3788-91. doi: 10.1109/IEMBS.2011.6090767.

DOI:10.1109/IEMBS.2011.6090767

PMID:22255164

Abstract

This paper presents the analysis of the autonomic nervous system (ANS) control and cardiac baroreflex sensitivity in patients undergoing general anesthesia for major surgery, with the goal of evaluating the effects of anesthesia bolus induction with propofol on autonomic control of heart rate (HR) and arterial blood pressure (ABP). The increase in baroreflex gain in the LF band observed through two different methods hints at the fact that the baroreflex may increase heart period (HP) following a transient ABP decrease, but its response displays a larger amplitude, to compensate for the blunting of the sympathetic action on heart rate and vascular resistance.

摘要