To investigate the occurrence of vibration-induced white finger (VWF) and the cold response of digital vessels in a group of 68 forestry workers who underwent a first clinical examination in 1990 and were then reexamined in 1995.
The forestry workers were divided into three groups : group A (n=27). active workers who did not have VWF in 1990 and continued to use chain saws : group B (n=29), workers who did not have VWF in 1990 and retired before 1995 : and group C (n=12), active or retired workers who had VWF in 1990.
The subjects underwent a medical interview, a complete physical examination, and a cold provocation test, which were performed by the same physicians at both surveys.
The cold test consisted of measurement of the finger systolic blood pressure (FSBP) after local cooling to 10 °C, expressed as a percentage of the pressure recorded at 30 °C (FSBP% 10°). Results : Three new cases of VWF occurred during the follow-up period among workers who had used only antivibration (AV) chain saws.
The vasoconstrictor response to cold was unchanged in group A and improved in group B (P<0.001).
A significant decreasc in VWF symptoms and abnormal response to cold was observed in group C (P<0.05).
As a result of preventive measures curtailing saw usage time in the VWF workers, the daily vibration exposure in group C was lower in 1995 than in 1990 (P=0.02). (...)
Mots-clés Pascal : Exposition professionnelle, Médecine travail, Scierie, Homme, Vibration, Appareil circulatoire pathologie, Test provocation, Froid, Toxicité, Analyse statistique, Modèle régression, Etude longitudinale, Evolution, Trouble dû au froid, Vaisseau sanguin, Trouble dû au bruit
Mots-clés Pascal anglais : Occupational exposure, Occupational medicine, Saw mill, Human, Vibration, Cardiovascular disease, Provocation test, Cold, Toxicity, Statistical analysis, Regression model, Follow up study, Evolution, Cold induced disorder, Blood vessel, Acoustic trauma
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 99-0031742
Code Inist : 002A08E. Création : 31/05/1999.