Forced oscillation technique (FOT) : a new tool for epidemiology of occupational lung diseases ?
The aim of this study was to evaluate the usefulness of the forced oscillation technique (FOT) in the assessment of occupation-related airway changes.
The forced oscillation technique and conventional lung function tests were applied in 80 underground coalface workers, aged 35-48 yrs, with chest roentgenogram films classified 0/1 or 1/0 according to the International Labour Office (ILO) classification (G group), and two control groups matched for age and smoking habits.
The first control group, was made up of face-workers having normal chest radiographs, whilst the second comprised underground non-face-workers with normal chest radiographs.
Spirometric, plethysmographic and transfer factor of the lungs for carbon monoxide single-breath (TL, CO, sb) indices revealed no significant differences between the three groups.
As regards the forced oscillation technique, a higher value of resistance/frequency slope (Pa.
L-1. s2) was found in the G group compared with the control groups ; 2.11 vs 1.06 in the face-workers, and 1.58 in the underground workers.
These findings together with the feasibility and acceptability of the forced oscillation technique would suggest that it may be a suitable tool for epidemiological studies of occupational respiratory diseases.
Mots-clés Pascal : Oscillation forcée, Appareil respiratoire pathologie, Médecine travail, Fonction respiratoire, Spirométrie, Pléthysmographie, Facteur transfert, Carbone monoxyde, Exploration, Technique, Epidémiologie, Homme
Mots-clés Pascal anglais : Forced oscillation, Respiratory disease, Occupational medicine, Lung function, Spirometry, Plethysmography, Transfer factor, Carbon monoxide, Exploration, Technique, Epidemiology, Human
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0507920
Code Inist : 002B24H. Création : 01/03/1996.