Table 1 Main observational indicators and their definitions
Main observational indicator | Definition |
|---|---|
Immediate intubation injury | Immediate mouth, pharynx and larynx injury, or incisor injury after intubation |
Postoperative intubation complications | Postoperative intubation complications in patients including neck pain, pharyngeal pain, dysphagia, hoarseness, dysphonia, and dislocation of the cricoarytenoid joint. |
Grade of voice hoarseness | |
Mild | Conscious hoarseness |
Moderate | Obvious hoarseness can be heard |
Severe | Dysphonia |
Glottic exposure time | Time between the cessation of oxygen supply until the glottis is exposed, and determines when it is possible to intubate |
Total duration of tracheal intubation | Time between the cessation of oxygen supply until the waveform is confirmed with end tidal carbon dioxide monitoring |