J Korean Radiol Soc.  1994 Nov;31(5):819-823.

Changes of Brachial Arterial Doppler Waveform during Immersion of the Hand of Young Men in Ice-cold Water

• Kim YG

Abstract

PURPOSE
To evaluate the changes of brachial arterial Doppler waveform during immersion of the hand of young men in ice-cold water.
MATERIALS AND METHODS
Doppler waveforms of brachial arteries in 11 young male patients were recorded before and during immersion of ipsilateral hand in ice-cold water(4--5 degree C). The procedure was repeated on separate days. Patterns of waveform during immersion were compared with the changes of pulsatility index.
RESULTS
Four men showed high impedance waveforms, and 5 men showed low impedance waveforms during immersion both at the first and at the second study. Two men, however, showed high impedance waveforms at the first study and low impedance waveforms at the second study. The pulsatility index rose and fell in high and low impedance waveforms, respectively.
CONCLUSION
The changes of brachial arterial Doppler waveforms could be classified into high and low impedance patterns, probably reflecting the acute changes in downstream impedance during immersion of hand in ice-cold water.

MeSH Terms

Brachial Artery
Electric Impedance
Hand*
Humans
Immersion*
Male
Water*
Water