Which technique can be used as an advanced intervention for airway obstruction?

Cricothyrotomy is an advanced intervention used to relieve severe airway obstruction when other methods, such as suctioning or back slaps, have failed or are impractical. This technique involves creating an opening in the skin and cricothyroid membrane of the neck to establish an airway directly into the trachea. It is particularly useful in emergency situations where there is significant facial or neck trauma, severe swelling, or when a patient can't be intubated using conventional methods.

This procedure provides immediate access to the airway, allowing for ventilation when other options are not viable. However, it is essential that this intervention is performed by trained personnel, as it requires specific technical skills and understanding of anatomy.