J Clin Monit Comput - Reliability of the volatile agent consumption display in the Draeger Primus? anesthesia machine.

Tópicos

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Resumo

Knowledge of the consumed amount of volatile anesthetic (VA) expressed in liquid agent is necessary to enable agent sparing dosing measures and for billing purposes. The widespread Draeger Primus? anesthesia machine displays in its logbook the amount of consumed VA at the end of each anesthesia, but the reliability of this parameter is yet unknown. The objective was to evaluate the precision and reliability of the inbuilt VA consumption display in Draeger Primus? anesthesia machines as compared with the gold standard of weighing the vaporizer before and after anesthesia. In this prospective laboratory investigation we compared the VA consumption displayed by the Draeger Primus? anesthesia machine with measured vaporizer weight differences before and after 10 sevoflurane and 10 desflurane anesthesias. We assessed the average difference and spread of values between the predicted (displayed) and measured (control) values for VA consumption. The displayed sevoflurane consumption overestimated the measured values by 4.3???5.4?ml (7.6?%). The displayed desflurane consumption underestimated the measured values by -3.5???6.3?ml (6.2?%). Nine from 10 sevoflurane pairs of values and all desflurane pairs of values were within ?1.96 SD. The displayed VA consumption calculations for sevoflurane and desflurane in the Draeger Primus? are sufficiently reliable to estimate the pharmacoeconomic impact of VA delivery during inhalational anesthesia.

Resumo Limpo

knowledg consum amount volatil anesthet va express liquid agent necessari enabl agent spare dose measur bill purpos widespread draeger primus anesthesia machin display logbook amount consum va end anesthesia reliabl paramet yet unknown object evalu precis reliabl inbuilt va consumpt display draeger primus anesthesia machin compar gold standard weigh vapor anesthesia prospect laboratori investig compar va consumpt display draeger primus anesthesia machin measur vapor weight differ sevofluran desfluran anesthesia assess averag differ spread valu predict display measur control valu va consumpt display sevofluran consumpt overestim measur valu ml display desfluran consumpt underestim measur valu ml nine sevofluran pair valu desfluran pair valu within sd display va consumpt calcul sevofluran desfluran draeger primus suffici reliabl estim pharmacoeconom impact va deliveri inhal anesthesia

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