Abstract
Objective To observe the safety and efficacy of the fourth generation of laryngeal mask airway in lateral position neurosurgical procedure.Methods 80 ASA Ⅱ or Ⅱ patients aged 18-55 undergoing neurosurgical procedure in lateral position were randomly divided into group L (receiving LMA) and group E (receiving endotracheal tube) for airway management.HR,MAP and SpO2 were recorded before intubation (base values,T1),immediately before intubation (T2),immediately after intubation (T3),3 min after intubation (T4),immediately before extubation (T5),immediately after extubation (T6) and 3 min after extubation (T7).Anesthesia effect and postoperation complications were recorded.Results Compared with T1,MAP at T2-T4 in group L and MAP at T2,T4 in group E decreased significantly (P < 0.05).Compared with group E,HR at T3-T6 in group L slowed,MAP at T3-T6 decreased (P < 0.05).Group E had a higher coughing incidence before extubation (P < 0.05).There were no significant differences in the incidences of sore throat and hoarse between two groups.No aspiration occurred.Conclusions The fourth generation of laryngeal mask airway intubation can provide the same safe and effective ventilation as endotracheal intubation in lateral position neurosurgical procedure.Furthermore,it is superior to endotracheal intubation in insection response and coughing response. Key words: Fourth generation of laryngeal mask airway; Lateral position; Neurosurgical procedure; General anesthesia
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