The Learning Curve And The Evaluation Of The Effect Of Inserting Laryngeal Mask Airway Supreme

Objective: To investigate the learning curve and the effect ofinserting laryngeal mask airway Supreme.Method: Select five anesthesiology postgraduates who have noexperience on using laryngeal mask airway Supreme and endotrachealintubation. They were trained to insert laryngeal mask airway Supreme onanthropometric dummy until proficient. Seventy-five ASA I to â…¢patients aged16–86yr, BMI<30kg/m2, scheduled for general anesthesiasurgery. Induction in supine position. According to the body weight toselect the type of LMA Supreme, intubation, and then ventilation.Observing SBP, DBP, HR and SpO₂at the time patients clam（T₀）, beforeintubation （T₁）, insertion （T₂）, before （T₃） and after extubation （T₄）.Recording the total time of intubation, the attempts and the success rateof the intubation. Observing the complications of nausea and vomiting,choking, aspiration, hypoxemia （SpO₂<93%） and the blood around thelaryngeal mask, sore throat, hoarseness.Results: More than10intubations, the learning curve hassignificant improvement. The success rate of intubation for first time was 92%. Compared with before extubation, SBP, DBP and HR all raisedafter extubation （P<0.05） and The value of SpO₂were above98%all thetime. There were no differences of SBP, DBP and HR at other time points.During the extubation, there were not any complications.Conclusion: The insertion of laryngeal mask Supreme can betrained in a short time. It can be applied to airway management in mostpatients and it is safe and reliable.