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  1. Exposure of postoperative nurses to exhaled anesthetic gases.

    Article - En anglais

    The National Institute of Occupational Safety and Health (NIOSH) has established recommended exposure limits of 25 parts per million (ppm) as a time-weighted average for nitrous oxide and a ceiling of 2 ppm for volatile anesthetics.

    We quantified exposure of postanesthetic nurses to exhaled anesthetic gases.

    This study was conducted in the postanesthesia care unit (PACU) of a medium-sized hospital.

    PACU air exchanges averaged 8 vol/h ; however, much of this air was recirculated.

    We evaluated 50 adults anesthetized with either isoflurane (n=19) or desflurane (n=31).

    Roughly half the patients were tracheally extubated in the operating room, whereas the others were extubated just after admission to the PACU.

    Exhaled anesthetic gases were sampled through a 20-m hose attached to the participating nurses'shoulders (breathing zone).

    We also evaluated nursing exposure to exhaled anesthetic gases during recovery of 15 patients who had been anesthetized with nitrous oxide.

    Exposure was quantified with lapel dosimeters.

    Anesthetic and recovery durations were each approximately 1 h, with most patients being tracheally extubated in the PACU.

    Breathing-zone anesthetic concentrations in the patients given isoflurane exceeded NIOSH recommendations in 37% of the patients, representing 12% of recovery time.

    Breathing-zone anesthetic concentrations in the patients given desflurane, however, exceeded NIOSH limits in 87% of the patients, representing 49% of recovery time. (...)

    Mots-clés Pascal : Desflurane, Isoflurane, Azote protoxyde, Infirmier, Personnel sanitaire, Homme, Milieu hospitalier, Anesthésique général, Extubation, Postopératoire, Exposition professionnelle, Médecine travail, Recommandation, Composé volatil, Halogène Composé organique, Gaz

    Mots-clés Pascal anglais : Desflurane, Isoflurane, Nitrogen protoxide, Nurse, Health staff, Human, Hospital environment, General anesthetic, Extubation, Postoperative, Occupational exposure, Occupational medicine, Recommendation, Volatile compound, Halogen Organic compounds, Gases

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0051832

    Code Inist : 002B02U10. Création : 31/05/1999.