Ketamine administration during ECT is well tolerated and patients may experience earlier improvement in depressive symptoms, longer seizure duration, and better cognitive performance when compared with thiopental.
Background: Sevoflurane is preferred for induction of general anesthesia in pediatrics. We examined the minimum duration of sevoflurane administration resulting in most optimal intubation conditions.
Methods: We included 75 children, aged 2-12 years, undergoing tonsillectomy under general anesthesia at Amir-Alam Hospital. They were given midazolam 0.05 mg/kg and fentanyl 2 mic/kg IV, five minutes before induction with sevoflurane 8% in 60% N2O and 40% O2 with total gas flow of 10 lit/min via face mask for 90 seconds (group I), 120 sec (group II) or 150 sec (group III), randomly. After tracheal intubation, intubation condition was assessed using Steyn's modification of Helbo Hansen scoring system. The total scores were divided into clinically acceptable (≤10) or unacceptable (>10).
Results: There was no statistically significant difference among the three groups in demographic characteristics. Mean ± SD of intubation scores were 10.04±2.9, 8.12±3.2, and 5.64±1.15 in groups 1-3, respectively (P<0.001) with statistically significant differences between all three groups: between groups I and II (P=0.044), I and III (P<0.001), as well as II and III (P=0.004). Intubation conditions were acceptable in 11, 16, and 25 patients in each group, respectively (P<0.001).
Conclusion: Inhalation induction by sevoflurane 8% in 150s provides acceptable clinical situation for intubation in pediatrics.
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