Effects of mechanical pumping on the arterial pulse wave velocity: peripheral artery and micro-vessels

Author

Wu, Shu-Mei ; Shau, Yio-Wha ; Lin, Bor-Shyh ; Chong, Fok-Ching

Author_Institution

Inst. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

1

fYear

2001

fDate

2001

Firstpage

229

Abstract

We studied the effect of mechanical pumping on the response of peripheral arteries by focusing on the pulse wave velocity (PWV) in large arterial conduit and micro-vessels. The pressure waveforms were measured simultaneously at the brachial artery (BA), radial artery (RA) and finger. Impulse pumping was operated by alternatively adding 80 mmHg pressure to the arm of normal subjects (N=10) in 3 seconds and relaxing to 0 mmHg in 7 seconds for a period of 15 minutes. After pumping the segmental arterial PWV from BA to finger decreases due to the action of the change in endothelial relaxing factor. However, we find the decrease in PWV from BA to finger after pumping was contributed from the results of BA-RA, the PWV for the micro-vessels (BA-finger) on the contrary was increased

Keywords

blood vessels; haemodynamics; 15 min; 3 s; 7 s; 80 mmHg; arm; arterial pulse wave velocity; brachial artery; endothelial relaxing factor; finger; large arterial conduit; mechanical pumping effects; microvessels; normal subjects; peripheral artery; radial artery; Arteries; Biomedical monitoring; Blood pressure; Brachytherapy; Fingers; Infrared sensors; Muscles; Pressure measurement; Pulse measurements; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE

Conference_Location

Istanbul

ISSN

1094-687X

Print_ISBN

0-7803-7211-5

Type

conf

DOI

10.1109/IEMBS.2001.1018897

Filename

1018897