Optimal Insertion Depth of FOB for Oral FOB Intubation

General Anesthesia Clinical Trial

Official title:

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

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT05277064
• Other study ID #: 10-2021-95
• Status: Not yet recruiting
• Start date: March 7, 2022
• Est. completion date: August 31, 2022

Study information

• Verified date: March 2022
• Source: Seoul National University Hospital
• Contact: Jung-Man Lee, MD.PhD
• Phone: +82-2-870-2513
• Email: jungman007[@]gmail.com
• Is FDA regulated: No
• Study type: Observational

Clinical Trial 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.

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.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 211
• Est. completion date: August 31, 2022
• Est. primary completion date: July 31, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 19 Years and older

Eligibility

Inclusion Criteria:

• patients requiring tracheal intubation for general anesthesia

Exclusion Criteria:

• do not agree to participate in the study

• emergency surgery

• predicted difficult intubation

• very weak teeth (especially central teeth)

Related Conditions & MeSH terms

• General Anesthesia

Intervention

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.

Locations

Country	Name	City	State
Korea, Republic of	Seoul Metropolitan Government Seoul National University Boramae Medical Center	Seoul

Sponsors (2)

Lead Sponsor	Collaborator
Seoul National University Hospital	SMG-SNU Boramae Medical Center

Country where clinical trial is conducted

Korea, Republic of, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	The length of optimal preliminary insertion depth of FOB (centimeters)	The length of optimal preliminary insertion depth of FOB means the insertion depth of it from the philtrum, the upper lip, or the incisors where the clinicians can see easily the glottic opening while they are flexing the FOB. And that will be recorded as centimeters.	during tracheal intubation