Clinical use of ProSeal laryngeal mask airway in the embolization of intracranial aneurysms

Objective To evaluate the clinical application of ProSeal laryngeal mask airway (PLMA) in the embolization of intracranial aneurysms under combined intravenous and inhalational anesthesia.Methods Forty patients scheduled for interventional therapy of intracranial aneurysm were randomly divided into 2 groups (n=20 each). After anesthesia induction, PLMA was inserted in group L without muscle relaxants while rocuronium was administered to facilitate intubation of endotracheal tube (ETT) in group T. Both groups were maintained with sevoflurane inhalation and target controlled infusion of propofol and remifentanil. SBP, DBP and HR were recorded before and after anesthesia induction, right after the insertion of PLMA or ETT, at the cessation of the procedure, and after removal of PLMA or ETT. The time for return of spontaneous breathing, the extubation time, the occurrence of adverse effects such as coughing and pharyngodynia, and anesthetic dosages used were also recorded.Results Perioperative hemodynamics was more stable, consumption of propofol and remifentanil was less, emergence from anesthesia was faster, and occurrence of pharyngodynia was fewer in group L than that in group T(P0.05). Conclusion PLMA is superior to endotracheal intubation in the embolization of intracranial aneurysms in terms of easy placement, reliable ventilation, less irritation, better hemodynamic profiles, faster emergence and less adverse effects.