Continuous measurement of BRSI in chronic fatigue syndrome

Author

Donnelly, D.L. ; Rockland, R.H. ; Reisman, S.S. ; Quigley, K.S.

Author_Institution

New Jersey Inst. of Technol., Newark, NJ, USA

Volume

1

fYear

2004

fDate

1-5 Sept. 2004

Firstpage

906

Lastpage

908

Abstract

This paper discusses the development of a system to measure continuous cardiac baroreceptor measurement during a 45-minute 70-degree head-up tilt (HUT) of five groups of subjects suffering the following: chronic fatigue syndrome (CFS), CFS with fibromyalgia (CFS-FM), CFS with postural orthostatic tachycardia syndrome (CFS-POTS), controls with POTS (CON-POTS), and controls (CON). The duration of the test was 56-minutes, which included a five-minute supine baseline, a 45-minute HUT and a six-minute recovery period. The system was developed in LabView, and can provide a comparative time analyses of weighted BRSI averages. Baroreflex effectiveness index (BEI) was also investigated over the course of lags 0, 1 and 2 as well as an assessment of overall BEI performance between groups.

Keywords

biocontrol; blood pressure measurement; blood vessels; bone; cardiovascular system; diseases; muscle; neurophysiology; patient diagnosis; 45 min; 5 min; 56 min; 6 min; LabView; baroreflex effectiveness index; baroreflex sensitivity index measurement; cardiac baroreceptor measurement; chronic fatigue syndrome; comparative time analyses; fibromyalgia; head-up tilt; postural orthostatic tachycardia syndrome; recovery period; supine baseline; Baroreflex; Biomedical engineering; Biomedical measurements; Blood pressure; Cardiology; Control systems; Dentistry; Fatigue; Heart rate; Rail to rail inputs; Baroreflex effectiveness index (BEI); Baroreflex sensitivity index (BRSI); Head-up tilt (HUT); Lags; Ramps; Sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-8439-3

Type

conf

DOI

10.1109/IEMBS.2004.1403306

Filename

1403306