Assessment of small-dose fentanyl and sufentanil blunting the cardiovascular responses to laryngoscopy and intubation in children

Fu Shan Xue, Kun Peng Liu, Yi Liu, Ya Chao Xu, Xu Liao, Guo-Hua Zhang, Cheng-Wen Li, Quan Yong Yang, Hai-Tao Sun
Paediatric Anaesthesia 2007, 17 (6): 568-74

BACKGROUND: The authors found no study assessing the efficacy of small-dose narcotics on the cardiovascular response from intubation in children, so they observed the effects of fentanyl 2 microg x kg(-1) and sufentanil 0.2 microg x kg(-1) on the cardiovascular changes during laryngoscopy and intubation in children.

METHODS: Ninety-three children aged 3-9 years were randomized to one of three groups to receive the following treatments in a double-blind manner: normal saline (group C), fentanyl 2 microg x kg(-1) (group F) and sufentanil 0.2 microg x kg(-1) (group S) 2 min before induction. Noninvasive blood pressure (BP) and heart rate (HR) were recorded before anesthesia induction (baseline value), immediately before intubation (postinduction values), at intubation and 5 min after intubation at 1-min interval.

RESULTS: Tracheal intubation caused significant increases in BP and HR in the three groups compared with baseline values. BP and HR at intubation and after intubation and their maximum values during observation were significantly lower in groups F and S than in group C (P < 0.05). The mean percent increases of systolic blood pressure (SBP) and HR at intubation were significantly lower in group S, 7% and 10%, than in group F, 17% and 25% (P < 0.05). The increases in SBP and HR of more than 30% of baseline values during the observation period were significantly higher in group F, 27% and 43%, than in group S, 0% and 3% (P < 0.05).

CONCLUSIONS: When used as part of anesthesia induction with propofol in children, sufentanil 0.2 microg x kg(-1) 2 min before induction is more effective in attenuating the cardiovascular intubation response than fentanyl 2 microg x kg(-1).

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