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Thermoregulation and rheological properties of blood in primary Raynaud's phenomenon and the vibration-induced white-finger syndrome

Frequent use of vibrating tools may lead to typical attacks of Raynaud's phenomenon (RP). The present study assesses the feasibility of the use of thermographic measurements of blood rheometry in the diagnosis of vibration-induced white-finger (VWF) syndrome. We studied 38 patients that were su...

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Published in:International archives of occupational and environmental health 2005-04, Vol.78 (3), p.218-222
Main Authors: ZIEGLER, Sophie, ZÖCH, Carina, GSCHWANDTNER, Michael, ECKHARDT, Gerald, WINDBERGER, Ursula, MINAR, Erich, RÜDIGER, Hugo, OSTERODE, Wolf
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container_title International archives of occupational and environmental health
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creator ZIEGLER, Sophie
ZÖCH, Carina
GSCHWANDTNER, Michael
ECKHARDT, Gerald
WINDBERGER, Ursula
MINAR, Erich
RÜDIGER, Hugo
OSTERODE, Wolf
description Frequent use of vibrating tools may lead to typical attacks of Raynaud's phenomenon (RP). The present study assesses the feasibility of the use of thermographic measurements of blood rheometry in the diagnosis of vibration-induced white-finger (VWF) syndrome. We studied 38 patients that were suffering from RP (primary RP, n=29; VWF, n=9) and 13 controls (six men and 45 women; mean age 49.1+/-11.6 years). Superficial finger skin blood flow was assessed with an infrared thermocamera before and after exposure to heat and cold. Fibrinogen, whole-blood viscosity and erythrocyte aggregation at different shear rates and plasma viscosity were measured. In patients with RP finger temperatures after re-warming were lower than those in controls [right hand digit (DIG) I P
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The present study assesses the feasibility of the use of thermographic measurements of blood rheometry in the diagnosis of vibration-induced white-finger (VWF) syndrome. We studied 38 patients that were suffering from RP (primary RP, n=29; VWF, n=9) and 13 controls (six men and 45 women; mean age 49.1+/-11.6 years). Superficial finger skin blood flow was assessed with an infrared thermocamera before and after exposure to heat and cold. Fibrinogen, whole-blood viscosity and erythrocyte aggregation at different shear rates and plasma viscosity were measured. In patients with RP finger temperatures after re-warming were lower than those in controls [right hand digit (DIG) I P&lt;0.02; DIG II-V P&lt;0.01; left hand DIG I P&lt;0.01; DIG II-V p&lt;0.02], male patients with primary RP had higher Fg-values (P&lt;0.02) and a trend to higher plasma viscosity. Patients with VWF had a trend to lower plasma viscosity than controls. Whole-blood viscosity at each shear rate was highest in patients with VWF. Provocation manoeuvres are essential in the diagnosis of RP. We speculate that the decreased plasma viscosity in VWF is a compensatory physiological mechanism, probably counteracting the chronic effects of vasospasm. The rise in whole-blood viscosity could be due to endothelial injury or to a reduction in the venous blood pH level. 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The present study assesses the feasibility of the use of thermographic measurements of blood rheometry in the diagnosis of vibration-induced white-finger (VWF) syndrome. We studied 38 patients that were suffering from RP (primary RP, n=29; VWF, n=9) and 13 controls (six men and 45 women; mean age 49.1+/-11.6 years). Superficial finger skin blood flow was assessed with an infrared thermocamera before and after exposure to heat and cold. Fibrinogen, whole-blood viscosity and erythrocyte aggregation at different shear rates and plasma viscosity were measured. In patients with RP finger temperatures after re-warming were lower than those in controls [right hand digit (DIG) I P&lt;0.02; DIG II-V P&lt;0.01; left hand DIG I P&lt;0.01; DIG II-V p&lt;0.02], male patients with primary RP had higher Fg-values (P&lt;0.02) and a trend to higher plasma viscosity. Patients with VWF had a trend to lower plasma viscosity than controls. 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The present study assesses the feasibility of the use of thermographic measurements of blood rheometry in the diagnosis of vibration-induced white-finger (VWF) syndrome. We studied 38 patients that were suffering from RP (primary RP, n=29; VWF, n=9) and 13 controls (six men and 45 women; mean age 49.1+/-11.6 years). Superficial finger skin blood flow was assessed with an infrared thermocamera before and after exposure to heat and cold. Fibrinogen, whole-blood viscosity and erythrocyte aggregation at different shear rates and plasma viscosity were measured. In patients with RP finger temperatures after re-warming were lower than those in controls [right hand digit (DIG) I P&lt;0.02; DIG II-V P&lt;0.01; left hand DIG I P&lt;0.01; DIG II-V p&lt;0.02], male patients with primary RP had higher Fg-values (P&lt;0.02) and a trend to higher plasma viscosity. Patients with VWF had a trend to lower plasma viscosity than controls. 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identifier ISSN: 0340-0131
ispartof International archives of occupational and environmental health, 2005-04, Vol.78 (3), p.218-222
issn 0340-0131
1432-1246
language eng
recordid cdi_proquest_miscellaneous_67754453
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subjects Adult
Aged
Austria
Biological and medical sciences
Body Temperature Regulation
Diagnosis, Differential
Female
Fingers - blood supply
Hemorheology
Humans
Male
Medical research
Medical sciences
Middle Aged
Plasma
Raynaud Disease
Traumas. Diseases due to physical agents
Vascular injuries: limbs, aorta, vena cava
Vibration - adverse effects
title Thermoregulation and rheological properties of blood in primary Raynaud's phenomenon and the vibration-induced white-finger syndrome
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