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Neurology India
Medknow Publications on behalf of the Neurological Society of India
ISSN: 0028-3886
EISSN: 0028-3886
Vol. 50, No. 4, 2002, pp. 531-533
Bioline Code: ni02147
Full paper language: English
Document type: Research Article
Document available free of charge

Neurology India, Vol. 50, No. 4, 2002, pp. 531-533

 en Short Report - The Effects of Cold Stress Test on Vasomotor Tonus in Normal Controls
H. Bozdemir,Y. Sarica, M. Demirkiran


Plethsymographic recordings are used to evaluate changes in peripheral vascular tonus. Twenty-six volunteers (15 men, 11 women) with a mean age 31 years were included in this study. Plethsymographic recordings were done both at baseline and +4°C temperatures bilaterally. Significant reductions in systemic blood flow were noted with different maneuvers. Reactive hyperemia occurring after ischemia was local, however local reduction in blood flow after cold test was systemic. As the local temperature increased, the blood flow parameters normalized, too. In normal controls these values normalized in 20 minutes. The changes in vasomotor tonus due to cold test demostrated a parallel pattern.

Plethysmography, Cold stress test, Vasomotor tonus. Post-ischemic reactive hyperemia

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