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Comparison of emergence times with different fresh gas flow rates following desflurane anaesthesia

Title
Comparison of emergence times with different fresh gas flow rates following desflurane anaesthesia
Author
정미애
Keywords
Low flow anaesthesia; desflurane; emergence time; extubation time
Issue Date
2014-12
Publisher
SAGE PUBLICATIONS LTD
Citation
JOURNAL OF INTERNATIONAL MEDICAL RESE, 권: 42, 호: 6, 페이지: 1285-1293
Abstract
Objective: To investigate emergence times with different fresh gas flow rates, following desflurane anaesthesia. Methods: Patients undergoing surgery with desflurane anaesthesia were randomly assigned to receive fresh gas flow rates of 100% oxygen during emergence of 2 l/min (group D2), 4 l/min (group D4) or 6 l/min (group D6). Time to eye opening, spontaneous movement and extubation (emergence time) were assessed after desflurane discontinuation. The end-tidal concentration of desflurane and bispectral index were recorded at each of these timepoints. Results: A total of 105 patients were included in the study, with 35 in each of the three groups. Mean times to extubation were 17.6 min, 9.9 min and 9.1 min in groups D2, D4 and D6, respectively. Times to eye opening, spontaneous movement and extubation in group D2 were significantly longer than in groups D4 and D6. Conclusions: These results suggest that there is the potential to predict emergence time based on fresh gas flow rate following desflurane anaesthesia. It should therefore be possible to use a low-flow technique during the emergence period, in addition to the maintenance period, without delaying recovery if the inhaled anaesthetic is stopped at the predicted time before the end of surgery.
URI
http://journals.sagepub.com/doi/10.1177/0300060514546939http://hdl.handle.net/20.500.11754/56489
ISSN
0300-0605
DOI
10.1177/0300060514546939
Appears in Collections:
COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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