Why can laryngeal mask airway tube be one step faster in emergency rescue

1. Operation: From complex process to one-button start

Traditional tracheal intubation requires laryngoscope to expose the glottis, which has high requirements on operator skills and patient position, and the first success rate is only about 70%. However, laryngeal mask insertion does not require deep airway, but only needs to be pushed along the midline of the tongue dorsum to the pharyngeal cavity, and ventilation can be established with the "blind rotation method". Studies have shown that nurses can master laryngeal mask insertion after 5 training sessions, while intubation training requires hundreds of hours.

2. Time: From minute-level to second-level response

In emergency rescue, the survival rate decreases by 10% for every minute of delay in intubation. The average time for laryngeal mask insertion is only 20 seconds, which is 2-3 times faster than intubation. For patients with cardiac arrest, laryngeal mask can buy more time for chest compression and avoid the vicious cycle of "interruption of compression-ventilation".

3. Indications: From strict screening to wide coverage

Risk and balance: the safety valve behind speed