Determination of optimum time for intravenous cannulation after induction with sevoflurane and nitrous oxide in children premedicated with midazolam
Küçük Resim Yok
Tarih
2014
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-Blackwell
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
BackgroundIt has been shown that early placement of an intravenous line in children administered sevoflurane anesthesia increased the incidence of laryngospasm and movement. However, the optimal time for safe cannulation after the loss of the eyelash reflex during the administration of sevoflurane and nitrous oxide is not known. AimThe aim of the study was to determine the optimum time for intravenous cannulation after the induction of anesthesia with sevoflurane and nitrous oxide in children premedicated with oral midazolam. MethodWe performed a prospective, observer-blinded, up-down sequential, allocation study, and children, aged 2-6years, ASA physical status I, scheduled for an elective procedure undergoing inhalational induction were included in the study. Anesthesia was induced with sevoflurane and nitrous oxide after premedication with oral midazolam. For the first child, 4min after the loss of the eyelash reflex, the intravenous cannulation was attempted by an experienced anesthesiologist. The time for intravenous cannulation was considered adequate if movement, coughing, or laryngospasm did not occur. The time for cannulation was increased by 15s if the time was inadequate in the previous patient, and conversely, the time for cannulation was decreased by 15s if the time was adequate in the previous patient. The probit test was used in the analysis of up-down sequences. ResultsA total of 32 children were enrolled sequentially during the study period. The adequate time for effective intravenous cannulation after induction with sevoflurane and nitrous oxide in 50% and 95% of patients were 1.29min (95% confidence interval, 0.96-1.54min) and 1.86min (95% confidence interval 1.58-4.35min), respectively. ConclusionWe recommend waiting 2min for attempting intravenous placement following the loss of the eyelash reflex in children sedated with midazolam and receiving an inhalation induction with sevoflurane and nitrous oxide.
Açıklama
Anahtar Kelimeler
Child, Sevoflurane, Nitrous Oxide, Midazolam, Induction Of Anesthesia, Adverse Events
Kaynak
Pediatric Anesthesia
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
24
Sayı
6
