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Reliability of the volatile agent consumption display in the Draeger Primus™ anesthesia machine

Biro, Peter; Kneschke, Oliver; Theusinger, Oliver M (2015). Reliability of the volatile agent consumption display in the Draeger Primus™ anesthesia machine. Journal of Clinical Monitoring and Computing, 29(5):601-604.

Abstract

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.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Institute of Anesthesiology
Dewey Decimal Classification:610 Medicine & health
Scopus Subject Areas:Health Sciences > Health Informatics
Health Sciences > Critical Care and Intensive Care Medicine
Health Sciences > Anesthesiology and Pain Medicine
Language:English
Date:2015
Deposited On:30 Dec 2014 09:37
Last Modified:12 Jul 2025 01:36
Publisher:Springer
ISSN:1387-1307
Additional Information:The final publication is available at Springer via http://dx.doi.org/10.1007/s10877-014-9639-6
OA Status:Green
Publisher DOI:https://doi.org/10.1007/s10877-014-9639-6
PubMed ID:25388511
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  • Language: English
  • Description: Nationallizenz 142-005

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