Optimal Insertion Depth of FOB for Oral FOB Intubation

March 2, 2022 updated by: Jung-Man Lee, Seoul National University Hospital

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

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.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

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.

Study Type

Observational

Enrollment (Anticipated)

211

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Korea, Republic of
      • Seoul, Korea, Republic of, 07061
        • Seoul Metropolitan Government Seoul National University Boramae Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

19 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Adult patients requiring tracheal intubation for general anesthesia without exclusion criteria of our study

Description

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)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The length of optimal preliminary insertion depth of FOB (centimeters)
Time Frame: during tracheal intubation
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

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Seoul National University Hospital

Collaborators

SMG-SNU Boramae Medical Center

Investigators

  • Principal Investigator: Jung-Man Lee, MD.PhD, SMG-SNU Boramae Medical Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

March 7, 2022

Primary Completion (Anticipated)

July 31, 2022

Study Completion (Anticipated)

August 31, 2022

Study Registration Dates

First Submitted

January 26, 2022

First Submitted That Met QC Criteria

March 2, 2022

First Posted (Actual)

March 14, 2022

Study Record Updates

Last Update Posted (Actual)

March 14, 2022

Last Update Submitted That Met QC Criteria

March 2, 2022

Last Verified

March 1, 2022

More Information

Terms related to this study

Other Study ID Numbers

  • 10-2021-95

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

IPD Plan Description

If there will be a reasonable request, we will provide the study data after approval of that from the IRB of our institute.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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