Comparison of Optimal Endotracheal Tube Depth Using Four Different Formulas in Children Aged 1-4 Years and Verification With Fiberoptic Bronchoscopy

April 24, 2025 updated by: Ozlem Can, Ankara University

Comparison of Optimal Endotracheal Tube Depth Using Four Different Formulas (Based on Age, Height, Weight, and Third Finger Length) in Children Aged 1-4 Years and Verification With Fiberoptic Bronchoscopy

. The optimal position of the endotracheal tube (ETT) within the trachea is the middle third portion, distal to the vocal cords. In addition to clinical assessments, methods such as posteroanterior chest radiography (PA-CXR) and fiberoptic bronchoscopy (FOB) can be used to verify ETT placement.

In our study, we aim to explain the relationship between the most accurate endotracheal tube depth and various formulas by using fiberoptic bronchoscopy, with the help of four different formulas based on age, height, weight, and third finger length.The study further seeks to:

  1. To identify the most accurate formula for estimating ETT placement depth in the pediatric population living in Turkey.
  2. To reduce the potential complications that may arise from incorrect ETT depth.
  3. To determine which formula, when verified by fiberoptic bronchoscopy, is also consistent with auscultation findings-especially in situations where chest radiography or fiberoptic bronchoscopy may not be readily available.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

120

Contacts and Locations

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

Study Locations

  • Turkey
      • Ankara, Turkey, 06100
        • Ankara University School of Medicine

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

  • Child

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

Between 1 and 4years of ages pediatric patients scheduled for elective surgery under general anesthesia

Description

Inclusion Criteria:

  • American Society of Anesthesiologists (ASA) physical status 1 , 2 or 3
  • Patients scheduled for elective surgical procedures
  • Informed consent must be obtained from both the patient and, if applicable, their parent or guardian.

Exclusion Criteria:

  • Patients under 1 year old or over 4 years old
  • Patients with tracheobronchial anomalies
  • Patients with vertebral column anomalies
  • Patients with a history of tracheostomy and difficult intubation
  • Patients who do not want to be included in the study
  • Children with finger anomalies and syndromic associations
  • Cases requiring nasal intubation

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To determine the correct depth of endotracheal tube insertion
Time Frame: only once
This study aims to identify the optimal endotracheal tube insertion depth in pediatric patients by evaluating tracheal dimensions using fiberoptic bronchoscopy.
only once
A comparative analysis of four formulas used to determine endotracheal tube positioning
Time Frame: only once
This study aims to identify the most accurate formula for estimating the ideal endotracheal tube depth among those based on age, weight, height, and middle finger length."
only once

Collaborators and Investigators

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

Sponsor

Ankara University

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 (Actual)

May 1, 2023

Primary Completion (Actual)

July 31, 2024

Study Completion (Actual)

December 31, 2024

Study Registration Dates

First Submitted

April 14, 2025

First Submitted That Met QC Criteria

April 14, 2025

First Posted (Actual)

April 22, 2025

Study Record Updates

Last Update Posted (Actual)

April 25, 2025

Last Update Submitted That Met QC Criteria

April 24, 2025

Last Verified

April 1, 2025

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • AU-AR-OC-03

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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.

Clinical Trials on Pediatric Surgical Procedures Requiring Endotracheal Intubation Under General Anesthesia

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Turkmenistan

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe