NCT05277064

Optimal Insertion Depth of FOB for Oral FOB Intubation

Optimal Preliminary Insertion Depth of Fiberoptic Bronchoscope for Visualization of Glottic Opening in Oral Fiberoptic Intubation

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 211 (estimated)
• Sponsor: Seoul National University Hospital · Academic / Other
• Sex: All
• Age: 19 Years
• Healthy volunteers: Not accepted

Summary

For oral fiberoptic intubation, the preliminary insertion depth of the fiberoptic bronchoscope should be important because the excessive insertion depth or too shallow depth might be the reason why the clinicians cannot perform oral fiberoptic intubation completely. The purpose of the study is to find out the optimal preliminary insertion depth of the fiberoptic bronchoscope for visualization of glottic opening in oral fiberoptic intubation.

Detailed description

For oral fiberoptic intubation, the preliminary insertion depth of the fiberoptic bronchoscope should be important because the excessive insertion depth or too shallow depth might be the reason why the clinicians cannot perform oral fiberoptic intubation completely. The purpose of the study is to find out the optimal preliminary insertion depth of the fiberoptic bronchoscope for visualization of glottic opening in oral fiberoptic intubation. The investigators will enroll the subjects of the present study after obtaining the written consent. After enrollment, the investigators will measure some anatomical distance, such as patient height. After induction of anesthesia and muscle relaxation for tracheal intubation, An investigator who has experiences of numerous fiberoptic intubation will measure the optimal preliminary insertion depth of the fiberoptic bronchoscope from the philtrum, the upper lip, or the incisors for oral fiberoptic intubation, with the aid of assistants. Then, tracheal intubation with a laryngoscope as a routine manner of our institute. The investigators will calculate the mean value of the optimal depth and find out an formula for that from our data.

Conditions

• General Anesthesia

Interventions

Type	Name	Description
OTHER	Oral FOB	After induction of anesthesia and muscle relaxation, An investigator who has experiences of numerous fiberoptic intubations will measure the optimal preliminary insertion depth of the fiberoptic bronchoscope for oral fiberoptic intubation.

Timeline

• Start date: 2022-03-07
• Primary completion: 2022-07-31
• Completion: 2022-08-31
• First posted: 2022-03-14
• Last updated: 2022-03-14

Locations

1 site across 1 country: South Korea