Ultrasound and Pediatric Endotracheal Tube Size (SoTu2)

Prediction of Uncuffed Endotracheal Tube Size in a Pediatric Population by Sonographic Measurements at Various Structures of the Airway Compared to Age-related Formulas and Little-finger Diameters

The aim of the present study was to evaluate the ultrasonographic airway measurement in pediatric patients to compare the correct size of an uncuffed endotracheal tube (ETT) with the minimal transverse airway diameter (MTAD) with tube size predicted by different age-related formulas and diameter of little finger.

Previous studies already showed that a prediction of pediatric ETT is possible with the ultrasonographic measurement of the MTAD. In this study measurements are performed at three predefined anatomic structures of the airway with each of These at two airway pressures.

The investigators hypothesize that one of the specific measurements predicts the fitting ETT size better than age-related formulas or diameter of little finger.

Study Overview

• Status: Completed
• Conditions: Intubation With Uncuffed Endotracheal Tube

• Study Type: Observational
• Enrollment (Actual): 101

Contacts and Locations

Study Locations

• Germany
  • Baden-Württemberg
    • Heidelberg, Baden-Württemberg, Germany, 69120
      • University of Heidelberg

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: No older than 6 years (Child)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Children scheduled for elective surgery

Description

Inclusion Criteria:

• signed informed consent by the legal guadian
• elective surgery requiring endotracheal intubation

Exclusion Criteria:

• missing informed consent
• allergy to ultrasound gel

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Minimal transverse airway Diameter (MTAD)	In this study measurements of MTAD are performed at three predefined anatomic structures of the airway with each of these at two airway pressures in the time frame between the administration of muscle relaxant and Intubation (average time available 3min).	Between administration of muscle relaxant and intubation (3min)

Collaborators and Investigators

• Sponsor: Heidelberg University

Study record dates

Study Major Dates

• Study Start: April 1, 2013
• Primary Completion (Actual): September 1, 2013
• Study Completion (Actual): September 1, 2013

Study Registration Dates

• First Submitted: June 5, 2013
• First Submitted That Met QC Criteria: June 11, 2013
• First Posted (Estimate): June 14, 2013

Study Record Updates

• Last Update Posted (Estimate): December 3, 2014
• Last Update Submitted That Met QC Criteria: December 2, 2014
• Last Verified: December 1, 2014

More Information

Terms related to this study

• Other Study ID Numbers: S021/2013