Objective This study investigated the relation between vibration exposure, the prevalence of white fingers, and the cold response of digital arterial vessels in workers using vibrating tools.
Methods The change in finger systolic blood pressure (FSBP) at 15 and 10°C as the percentage of the pressure at 30°C (FSBP%) was measured in 455 healthy referents and 822 workers exposed to hand-transmitted vibration.
Exposure to hand-transmitted vibration was assessed in terms of 8-hour energy-equivalent frequency-weighted acceleration [A (8) ] and total operating time with vibrating tools.
Results The prevalence of white fingers was 1.1% for the referents and ranged from 9.0% to 51.6% for the vibration-exposed groups.
The estimated mean value of A (8) ranged between 1.6 (referents) and 8.3 (quarry drillers) m/s2.
After adjustment for age, smoking, and drinking habits, the FSBP% was significantly lower in the vibration-exposed groups than in the reference group.
Groupwise, the FSBP% 10° was inversely related to the prevalence of white fingers, the estimated A (8), and total operating time.
With FSBP% 10°<70% or<60% as the lower normal limit, the sensitivity of the cold test varied from 86% to 100%, with a specificity of 90% to 94%, and a positive predictive value of 68% to 74%. Conclusions FSBP measurement during cold provocation is a useful laboratory test for white fingers. (...)
Mots-clés Pascal : Raynaud syndrome, Trouble dû aux vibrations, Vibration, Appareil vibrant, Test provocation, Froid, Hémodynamique périphérique, Exposition professionnelle, Doigt, Main, Médecine travail, Homme, Appareil circulatoire pathologie, Vaisseau sanguin pathologie, Capillaire sanguin pathologie, Peau pathologie, Système nerveux autonome pathologie, Acrosyndrome
Mots-clés Pascal anglais : Raynaud phenomenon, Vibration induced disorder, Vibration, Vibrating apparatus, Provocation test, Cold, Peripheral hemodynamics, Occupational exposure, Finger, Hand, Occupational medicine, Human, Cardiovascular disease, Vascular disease, Capillary vessel disease, Skin disease, Diseases of the autonomic nervous system, Acrosyndrome
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0259144
Code Inist : 002B12B03. Création : 11/09/1998.