Airway Response Clinical Trial
Official title:
Optimal Dose of Alfentanil for Removal of Supreme Laryngeal Mask Airway During Emergence From Desflurane Anaesthesia
This study aims to determine the optimal dose of alfentanil in suppressing the airway reflexes during supreme LMA removal in anaesthetized adult.
The removal of LMA may be associated with coughing, biting, agitation and airway complication
such as laryngospasm. Thus it is advisable to remove the LMA when the patient is breathing
spontaneously and when the airway reflexes are still depressed. A number of techniques have
been used to prevent this adverse emergence phenomenon, such as removing the tube while the
patient is in deep plane of anaesthesia or administration of local anaesthetic and
intravenous opioids
The administration of intravenous opioids before emergence may be useful for preventing
cough, agitation and hemodynamic response. Alfentanyl is proven to suppress cough and
agitation during the endotracheal tube emergence. However, its use in suppressing cough in
LMA patient has not been evaluated.
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