Inhalational induction with sevoflurane, nitrous oxide, and oxygen is accepted as a safe technique to avoid any movement during intravenous cannulation in children. In addition, intranasal dexmedetomidine could be used for premedication to reduce preoperative anxiety in preschool children. Early attempts to place, an intravenous line may result in movement and respiratory complications like coughing or laryngospasm. On the other hand delay in cannulation may prevent effective management of bradycardia and hypotension. There are a number of studies examining the optimum time for cannulation after sevoflurane induction. However, it is not known whether the addition of dexmedetomidine premedication affects the time for intravenous cannulation following induction with sevoflurane and nitrous oxide.
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Determination of optimum time for intravenous cannulation after induction with sevoflurane and nitrous oxide in children premedicated with dexmedetomidine
Timeframe: The outcome will be assessed at the time of intravenous cannulation attempt.