Comparison of effect of video tracheal intubation and direct laryngoscopy on tracheal intubation in patients with missing teeth

Objective To compare the effect of the application of tracheal intubation with SEESHEEN video intubation endoscope (ENF-20) and direct laryngoscopy in patients with missing teeth. Methods 50 patients with missing teeth were selected, and they were randomly divided into two groups, respectively after induction of general anesthesia in tracheal intubation using ENF-20 (group E) and direct laryngoscopy (SHUCMAN laryngoscopy) (group S) intubation. The time of intubation, the times of intubation and the complication of intubation were recorded. Results The success rate of intubation in group E was 92%, which was significantly higher than 64% in group S (χ2=5.711, P=0.017). The intubation time of group E was (27±12)s, which was significantly shorter than (36±13)s in group S (t=-2.620, P=0.012). The total intubation complications of group E was 12%, which was significantly lower than 48% of the group S (χ2=6.095, P=0.014). Conclusion The successful rate of tracheal intubation in patients with missing teeth by using video tracheal intubation (ENF-20) is higher and with less complication. Key words: Intubation, intratracheal; Video tracheal intubation; Direct laryngoscopy; Patients with missing teeth