Clinical Observation Of The Effect Of Supreme Laryngeal Mask Used In Intracranial Aneurysm Embolization Anesthesia

Objective: To evaluate the effect of Supreme dual-chamber laryngeal mask on the anesthesia in intracranial aneurysm embolization.Methods: After excluding the patients with history of diabetes, difficult airway, dysfunction of liver and kidney and arrhythmia, 46 patients undergoing elective intracranial aneurysms embolization, ASA grade level I or II, male or female, aged 45-67 yr, weighing 46-84 kg, were randomly divided into two groups: dual-chamber LMA Supreme group(group S) and intratracheal intubation group(group T). Supreme dual-chamber laryngeal mask and tracheal intubation were inserted in group S and group T respectively after induction of general anesthesia. The time of establishing artificial airway and recovery time were recorded. The MAP and HR were recorded in the initial stage(T0), before establishing airway(T1), immediately after the establishment of airway(T2), at the time of aneurysm embolization(T3), at the end of surgery(T4) and after the removal of laryngeal mask(or intratracheal tube)(T5)(P<0.05). Meanwhile, the number of patients with restlessness and bucking during extubation was recorded and the frequency of use of esmolol and nicardipine was counted.Results: Compared with group S, the MAP and HR of group T were increased at T2 and T5, and higher than that at T0, while there was no statistically significant difference on MAP and HR of group S at T2, T5 and T0(P>0.05). The dosage of propofol and remifentanil, duration of intubation and extubation, frequency of use of esmolol and nicardipine, incidence rates of bucking and restlessness in group S were all lower than that in group T(P<0.05).Conclusion: The use of Supreme dual-chamber LMA for anesthesia in intracranial aneurysm embolization could keep hemodynamic stability, reduce the dosage of anesthetic drugs, the number of using vasoactive drug and the consuming time of intubation and extubation significantly, and decrease the incidence rate of bucking and restlessness during recovery period. Thus, Supreme dual-chamber laryngeal mask has better efficacy for anesthesia in intracranial aneurysm embolization.