Characterization of aerosols produced during total hip replacement surgery in dogs with 51Cr-labeled blood.
There is increasing concern over the potential inhalation hazard to health care workers from blood-borne pathogens.
Previous studies have demonstrated that inhalable, blood-associated aerosols are produced during orthopedic surgery.
However, the identification and quantitative estimation of blood-associated aerosols have been based upon simple « dipstick » analysis of the collected samples.
In order to confirm the presence of these blood-associated aerosols and to estimate the amount produced, the red blood cells of five dogs were radiolabeled with 51Cr before aerosol samples were taken during total hip replacement procedures.
Various aerosol sampling devices including a Marple personal cascade impactor, two Lovelace multi-jet impactors, and air filters were used.
The Marple personal cascade impactor was worn by the surgeon.
One Lovelave multi-jet impactor was sampled near the surgical site, while the other Lovelace impactor and the filter samples were taken through a probe located near the surgical site.
The samples were subjected to gravimetric analyses, and blood contents were assessed by Chemstrip 9 analysis and by radioactivity counting.
Results confirmed that blood-associated aerosols were produced during orthopedic surgery.
The time-averaged mass concentration near the surgical site, as measured by the personal impactor, was 0.37 mg m-3 of that amount, 6.5 mug m-1 (1.8% of the total mass concentration) was attributed to red blood cells (RBCs).
Mots-clés Pascal : Chirurgien, Chirurgie orthopédique, Exposition professionnelle, Inhalation, Sang, Pathogène, Personnel sanitaire, Lieu travail, Echantillonnage, Teneur air ambiant, Homme, Modèle animal, Chien, Erythrocyte, Dissémination, Aérosol, Marquage radioisotopique, Chrome, Facteur risque, Chrome 51, Fissipedia, Carnivora, Mammalia, Vertebrata, Système ostéoarticulaire pathologie
Mots-clés Pascal anglais : Surgeon, Orthopedic surgery, Occupational exposure, Inhalation, Blood, Pathogenic, Health staff, Work place, Sampling, Ambient air concentration, Human, Animal model, Dog, Red blood cell, Dissemination, Aerosols, Radiolabelling, Chromium, Risk factor, Fissipedia, Carnivora, Mammalia, Vertebrata, Diseases of the osteoarticular system
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0279664
Code Inist : 002B30A05. Création : 01/03/1996.