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Dexmedetomidine does not reduce emergence agitation in adults following orthognathic surgery

Authors
 S. Y. HAM  ;  J. E. KIM  ;  C. PARK  ;  M. J. SHIN  ;  Y. H. SHIM 
Citation
 ACTA ANAESTHESIOLOGICA SCANDINAVICA, Vol.58(8) : 955-960, 2014 
Journal Title
ACTA ANAESTHESIOLOGICA SCANDINAVICA
ISSN
 0001-5172 
Issue Date
2014
MeSH
Adult ; Anesthesia Recovery Period* ; Anesthesia, General ; Cough/etiology ; Delayed Emergence from Anesthesia/chemically induced* ; Dexmedetomidine/administration & dosage ; Dexmedetomidine/pharmacology ; Dexmedetomidine/therapeutic use* ; Double-Blind Method ; Drug Synergism ; Female ; Humans ; Intubation, Intratracheal/adverse effects* ; Isoflurane/analogs & derivatives ; Male ; Middle Aged ; Orthognathic Surgical Procedures* ; Pain Measurement ; Piperidines/administration & dosage ; Piperidines/pharmacology ; Piperidines/therapeutic use* ; Psychomotor Agitation/etiology ; Psychomotor Agitation/prevention & control* ; Tachycardia/etiology ; Tachycardia/prevention & control* ; Young Adult
Abstract
BACKGROUND: Patients undergoing orthognathic surgery are at high risk of developing emergence agitation. We hypothesised that a single-dose of dexmedetomidine would reduce emergence agitation in adults with nasotracheal intubation after orthognathic surgery.
METHODS: Seventy adults (20-45 years old) undergoing orthognathic surgery were randomly assigned to two groups. Patients received intravenous dexmedetomidine 1 μg/kg (dex group) or normal saline (control group) for 10 min at the end of surgery. Remifentanil was infused at 0.02 μg/kg/min during emergence in both groups. The severity of emergence agitation was assessed with the Richmond agitation-sedation scale. Cough, haemodynamic and respiratory profiles, pain, and time to eye opening were evaluated.
RESULTS: The incidence of emergence agitation was not different between dex group and control group (38% vs. 47%, P = 0.45). However, severe cough during emergence was reduced in the dex group (P = 0.04). Tachycardia during emergence and recovery phases was attenuated in the dex group. The verbal numeric rating of pain was lower in the dex group. There were no differences in respiratory rate between the two groups. Time to eye opening was prolonged in the dex group.
CONCLUSION: The addition of a single dose of dexmedetomidine (1 μg/kg) to low-dose remifentanil infusion did not attenuate emergence agitation in intubated patients after orthognathic surgery compared with low-dose remifentanil infusion alone. However, single-dose dexmedetomidine suppressed coughing, haemodynamic changes, and pain during emergence and recovery phases, without respiratory depression. Delayed awakening might be associated with this treatment.
Full Text
http://onlinelibrary.wiley.com/doi/10.1111/aas.12379/abstract
DOI
10.1111/aas.12379
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Ji Eun(김지은)
Park, Chol Hee(박철희)
Shim, Yon Hee(심연희) ORCID logo https://orcid.org/0000-0003-1921-3391
Ham, Sung Yeon(함성연) ORCID logo https://orcid.org/0000-0001-8619-4595
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/99361
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