CClinicalTrials.gg
Sign In
CompletedNCT03878797Updated Jan 18, 2020

The Depth of Endotracheal Tube Insertion

An observational study in Endotracheal Intubation, sponsored by Gao Mei. Completed at 1 site in China. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2020-01-18.

Sponsored by Gao Mei · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
200
Ages
18 Years to 60 Years
Sex
All
01

Study summary

Virtual experiment : comparing the new method with conventional method of determining the depth of endotracheal intubation.

Read the detailed description

Effective airway management is the primary concern of the anesthesiologist. The conventional method of determining the insertion length of the endotracheal tube, 21 cm for women and 23 cm for men, shows a high incidence of endobronchial intubations in the analyzed population.The aim of this study is form a new and safe practice habit by passing the endotracheal tube with the balloon just 2 cm below the vocal cords during intubation.

02

Conditions studied

  • Endotracheal Intubation

Keywords

  • Endotracheal tube
  • Endobronchial intubation
  • Vocal cords
  • Bronchoscopy
03

In context

Lead sponsor

This is the only study on the registry with Gao Mei as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

adult patients who are scheduled for elective surgery under general anesthesia

Inclusion criteria

  • Patients who are scheduled for elective surgery under general anesthesia

Exclusion criteria

Exclusion Criteria:

  • Patients with anatomical defects of the face, neck, or upper airway
  • Patients at risk for pulmonary aspiration of gastric content
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
200 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. the depth of primary insertion of tracheal tube

    Time frame: in a minute after intubation

Secondary outcomes

  1. the distance from the corner of mouth to the carina

    Time frame: in a minute after intubation

  2. the distance from the vocal cords to the carina

    Time frame: in a minute after intubation

  3. the distance from the corner of mouth to the vocal cords

    Time frame: in a minute after intubation

07

Study locations

1 site
  • The First Affiliated Hospital with Nanjing Medical University
    Nanjing, Jiangsu 210029, China
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 18, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03878797
Lead sponsor
Gao Mei
Responsible party
Gao Mei (Assistant Director, The First Affiliated Hospital with Nanjing Medical University) — Sponsor-investigator
First posted
Mar 18, 2019
Start date
May 20, 2019
Primary completion
Dec 26, 2019
Completion
Dec 26, 2019
Last update
Jan 18, 2020

Oversight

Data monitoring committee
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion