Application of Various High-Frequency Ventilation Techniques during Surgical Procedures on the Larynx and Trachea

Abstract

Surgical procedures on the larynx and in the trachea pose a special problem for the surgeon and the anaesthetist. Both require access to the larynx. Different ventilation techniques have therefore been developed for a long time to provide the surgeon with optimal
working conditions and the anaesthetist with the possibility of safe ventilation. Techniques that could apply the ventilation gas
via a nozzle have been established. Special catheters or jet needles were developed for this purpose.A new generation of ventilators
was then developed that could simultaneously apply two gas flows with different frequencies. The transcricoid approach thus offers
the surgeon optimum conditions with no movement of the vocal cords