• Jong In Han, Heeseung Lee, Chi Hyo Kim, and Guie Yong Lee.
• Department of Anesthesiology and Pain Medicine, School of Medicine, Ewha Womans University, Seoul 158-710, South Korea. hanji@ewha.ac.kr <hanji@ewha.ac.kr>
• J Clin Anesth. 2010 Feb 1;22(1):3-6.

Study ObjectiveTo determine if fentanyl-induced cough was dose-dependent in children and whether it could affect tracheal intubation.DesignProspective, randomized, double-blinded study.SettingOperating room of a university-affiliated hospital.Patients160 ASA physical status I pediatric patients, aged two to 14 years, scheduled for elective surgery during general anesthesia and requiring orotracheal intubation.InterventionsPatients were divided into two groups. Group 1 patients were given fentanyl at a dosage of one microg/kg; Group 2 patients received two microg/kg of fentanyl. Induction of anesthesia was conducted immediately following cough cessation or one minute after the end of injection with propofol 2.5 mg/kg. At loss of eyelash reflex, rocuronium 0.6 mg/kg was given intravenously (IV). Two minutes later, tracheal intubation was started.MeasurementsOnset and degree of cough and intubating conditions were observed and recorded.Main ResultsNo statistically significant differences in frequency of coughing or in intubating conditions between the two groups were noted. Cough severity in Group 1 was statistically lower than that of Group 2 (P < 0.05). Onset of cough in Group 2 (12.2 +/- 3.4 sec) was statistically shorter than in Group 1 (16.9 +/- 7.6 sec, P < 0.05).ConclusionFentanyl at doses of one and two microg/kg may induce coughing in pediatric patients.

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