Successful Rate of Cuff Inflation Technique in Video Laryngoscope Assisted Nasal Intubation in Elective Maxillo-Facial Patients: a Randomized Controlled Trial

Abstract

Background: Video laryngoscope with Magill forceps usage is the popular method for nasal tube intubation. Normally the success rate of nasal tube intubation depends on the matched alignment between endotracheal tube and glottis. With Magill forceps usage, we can control the tip of nasal tube, but this equipment also increases the risk of oral soft tissue injuries. Cuff inflation in nasal tube (NT) is another method to make tube stay in good alignment with glottic opening which should increase the success rate for NTI without injury. The aim of the study is to evaluate the success rate of cuff inflation technique under video laryngoscope for NTI compared to Magill usage. Methods: 80 patients undergoing elective Maxillo-facial surgeries under GA who could not pass the NT by VL alone were randomized into two groups (40 per group). NTI in Group B were intubated by cuff inflation method, NTI in group M were intubated by Magill forceps method. Primary outcome was succession rate of NTI by cuff inflation technique. Secondary outcomes were insertion duration, and complications. In Statistical analysis by STATA v.15, Descriptive statistic, inferential statistics, unpaired t-test, P-value <0.05 was considered significant. Results: All NTIs were successfully completed. There was a significant difference in the duration of insertion. Group B was 15.1±10.8 sec, and group M was 20.4±9.4 sec (P=0.02). Procedure-related complications in both groups were not different (P>0.05). Conclusion: All NTIs were completed successfully. The cuff inflation technique reduced the time usIng for intubation compared to the Magill forceps technique and complications were not different between the two groups.