Application value of laryngeal mask airway and trachea cannula under different conditions of emergency medical service / 中华全科医师杂志

First-aid stations were divided randomly into 4 groups.Advanced airway for sudden cardiac arrest patients with laryngeal mask airway (LMA) was established in groups A and C while trachea cannula was inserted on spot of emergency medical service (EMS) or in ambulance in groups B and D.According to the results,the success rate of insertion and cardiopulmonary resuscitation (CPR) of groups A and C were higher than the other two groups (P ＜ 0.05).However,the required time was shorter (P ＜ 0.05).Due to a difficult catheterization environment,LMA is more effective and convenient than trachea cannula in EMS.