Abstract: PURPOSE: To investigate the effectiveness of nasal protection for patients undergoing oral and maxillofacial surgery with transnasal tracheal intubation fixator. METHODS: A total of 43 oral and maxillofacial surgery patients with general anesthesia were selected and divided into 2 groups: experimental group(n=22) and control group(n=21). After anesthesia induction, nasal tracheal intubation was performed. The transnasal tracheal intubation fixator was used in the experimental group, and the conventional method was used in the control group. The nasal pressure after fixation of tracheal catheter, the time used for fixation of tracheal catheter, the postoperative nasal comfort score and the occurrence of pressure injury were recorded. SPSS 27.0 software package was used for statistical analysis of the data. RESULTS: There was no significant difference in the nasal pressure of the tracheal catheter after fixation between the two groups(P=0.135), the pressure of the experimental group was (1.30±0.19)N, and that of the control group was (1.19±0.30)N. The time of tracheal tube fixation in the experimental group was 39.50 s, which was significantly less than that in the control group (119.00 s, P<0.001). The nasal comfort score of the experimental group was 1.00 points after 24 h, which was significantly lower than that of the control group (2.00 points, P<0.01). There was no significant difference in the incidence of stress injury between the two groups (P=0.215). CONCLUSIONS: Compared with traditional fixation of nasal catheter, the use of transnasal tracheal intubation fixator for patients with oral and maxillofacial surgery has no significant changes in the value of nasal catheter pressure after fixation of tracheal catheter, but it can shorten the time required by surgeons to fix the nasal catheter and reduce the nasal comfort score 24 h after surgery.

Key words: Transnasal tracheal intubation fixator, Alar pressure, Nasal injury, Oral and maxillofacial surgery