S Y Kim1, J M Kim, J H Lee, B M Song, B N Koo. 1. Department of Anaesthesiology and Pain Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
Abstract
BACKGROUND: Emergence agitation is common after nasal surgery. We investigated the effects of intraoperative dexmedetomidine infusion on emergence agitation and quality of recoveryafter nasal surgery in adult patients. METHODS:One hundred patients undergoing nasal surgery were randomized into two groups. The dexmedetomidine group (Group D, n=50) received dexmedetomidine infusion at a rate of 0.4 μg kg(-1) h(-1) from induction of anaesthesia until extubation, while the control group (Group C, n=50) received volume-matched normal saline infusion as placebo. Propofol (1.5-2 mg kg(-1)) and fentanyl (1 μg kg(-1)) were used for induction of anaesthesia, and desflurane was used for maintenance of anaesthesia. The incidence of agitation, haemodynamic parameters, and recovery characteristics were evaluated during emergence. A 40-item quality-of-recovery questionnaire (QoR-40) was provided to patients 24 h after surgery. RESULTS: The incidence of agitation was lower in Group D than Group C (28 vs 52%, P=0.014). Mean arterial pressure and heart rate were more stable in Group D than in Group C during emergence (P<0.05). Time to extubation, bispectral index, and respiratory rate at extubation were similar between the groups. Global QoR-40 score at 24 h after surgery was higher in Group D (median [range], 183 [146 -198]) compared with Group C (178 [133-196]) (P=0.041). CONCLUSIONS: Intraoperative infusion of dexmedetomidine provided smooth and haemodynamically stable emergence. It also improved quality of recoveryafter nasal surgery.
RCT Entities:
BACKGROUND: Emergence agitation is common after nasal surgery. We investigated the effects of intraoperative dexmedetomidine infusion on emergence agitation and quality of recovery after nasal surgery in adult patients. METHODS: One hundred patients undergoing nasal surgery were randomized into two groups. The dexmedetomidine group (Group D, n=50) received dexmedetomidine infusion at a rate of 0.4 μg kg(-1) h(-1) from induction of anaesthesia until extubation, while the control group (Group C, n=50) received volume-matched normal saline infusion as placebo. Propofol (1.5-2 mg kg(-1)) and fentanyl (1 μg kg(-1)) were used for induction of anaesthesia, and desflurane was used for maintenance of anaesthesia. The incidence of agitation, haemodynamic parameters, and recovery characteristics were evaluated during emergence. A 40-item quality-of-recovery questionnaire (QoR-40) was provided to patients 24 h after surgery. RESULTS: The incidence of agitation was lower in Group D than Group C (28 vs 52%, P=0.014). Mean arterial pressure and heart rate were more stable in Group D than in Group C during emergence (P<0.05). Time to extubation, bispectral index, and respiratory rate at extubation were similar between the groups. Global QoR-40 score at 24 h after surgery was higher in Group D (median [range], 183 [146 -198]) compared with Group C (178 [133-196]) (P=0.041). CONCLUSIONS: Intraoperative infusion of dexmedetomidine provided smooth and haemodynamically stable emergence. It also improved quality of recovery after nasal surgery.