Loss-of-resistance Syringe Technique in Determining Endotracheal Cuff Pressure

The cuffs of the endotracheal tubes will be inflated with the epidural loss of resistance syringe, the syringe piston will be released, the syringe piston will be pushed back with oscillation, and then the cuff pressures will be measured and recorded with a cuff manometer (VBM Cuff Pressure Gauge) and an electronic injector that measures cuff pressure (AG Cufill). A three-way vein valve will be used when making this measurement. During the measurement, an epidural resistance loss injector will be attached to one valve, a cuff manometer attached to another valve, and an electronic injector (AG Cufill) measuring cuff pressure to the third track. With this technique, the possibility of leakage due to insertion and removal during measurements will be eliminated.