In vitro performance evaluation of \(AnaConDa^{TM}\)-100 and \(AnaConDa^{TM}\)-50 compared to a circle breathing system for control and consumption of volatile anaesthetics
- To identify the better volatile anaesthetic delivery system in an intensive care setting, we compared the circle breathing system and two models of reflection systems (\(AnaConDa^{TM}\) with a dead space of 100 ml (ACD-100) or 50 ml (ACD-50)). These systems were analysed for the parameters like wash-in, consumption, and wash-out of isoflurane and sevoflurane utilising a test lung model. The test lung was connected to a respirator (circle breathing system: Aisys \(CS^{TM}\); ACD-100/50: Puriton Bennett 840). Set parameters were volume-controlled mode, tidal volume-500 ml, respiratory rate-10/min, inspiration time-2 sec, PEEP-5 mbar, and oxygen-21%. Wash-in, consumption, and wash-out were investigated at fresh gas flows of 0.5, 1.0, 2.5, and 5.0 l/min. Anaesthetic target concentrations were 0.5, 1.0, 1.5, 2.0, and 2.5%. Wash-in was slower in ACD-100/-50 compared to the circle breathing system, except for fresh gas flows of 0.5 and 1.0 l/min. The consumption of isoflurane and sevoflurane in ACD-100 and ACD-50 corresponded to the fresh gas flow of 0.5-1.0 l/min in the circle breathing system. Consumption with ACD-50 was higher in comparison to ACD-100, especially at gas concentrations > 1.5%. Wash-out was quicker in ACD-100/-50 than in the circle breathing system at a fresh gas flow of 0.5 l/min, however, it was longer at all the other flow rates. Wash-out was comparable in ACD-100 and ACD-50. Wash-in and wash-out were generally quicker with the circle breathing system than in ACD-100/-50. However, consumption at 0.5 minimum alveolar concentration was comparable at flows of 0.5 and 1.0 l/min.
Author: | Martin BellgardtORCiDGND, Dominik DreesGND, Vladimir VinnikovGND, Adrian-Iustin GeorgeviciGND, Livia ProcopiucGND, Thomas WeberORCiDGND, Andreas MeiserGND, Jennifer Herzog-NiesceryORCiDGND |
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URN: | urn:nbn:de:hbz:294-96790 |
DOI: | https://doi.org/10.1007/s10877-020-00634-4 |
Parent Title (English): | Journal of clinical monitoring and computing |
Publisher: | Springer Science + Business Media B.V. |
Place of publication: | Dordrecht |
Document Type: | Article |
Language: | English |
Date of Publication (online): | 2023/02/23 |
Date of first Publication: | 2020/12/21 |
Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
Tag: | Circle breathing system; Costs; Inhalation Anaesthetics; Isofurane; Sevofurane; \(AnaConDa^{TM}\) |
Volume: | 36 |
First Page: | 169 |
Last Page: | 177 |
Note: | Dieser Beitrag ist auf Grund des DEAL-Springer-Vertrages frei zugänglich. |
Institutes/Facilities: | St. Josef-Hospital Bochum, Klinik für Anästhesiologie und Intensivmedizin |
Dewey Decimal Classification: | Technik, Medizin, angewandte Wissenschaften / Medizin, Gesundheit |
open_access (DINI-Set): | open_access |
Licence (English): | Creative Commons - CC BY 4.0 - Attribution 4.0 International |