Ultrasound Evaluation of Endotracheal Tube Depth

Status Recruiting

Clinical Trial Summary

Correct positioning of the endotracheal tube (ETT) is crucial to ensure safe ventilation. To date, no test that can verify this right after intubation at the bedside exists. Indirect tests have false negative and positive results leading to complications or at least difficulties in performing effective ventilation of patients.

Bedside ultrasound could fill this need. Although bedside ultrasound may not be possible or useful in routine intubations, it may prove useful in difficult or questionable cases, where current clinical exams/techniques may not offer a reliable indication of endotracheal tube depth.

Clinical Trial Description

Ultrasound is able to visualize some parts of the trachea and the ETT therein and although the actual structures of interest (ETT tip and carina) are difficult or impossible to visualize reliably (due to their air contents reflecting ultrasound beams) one can use surrogates:

The cuff of the ETT can be visualized as it is in- or deflated or it can be filled with an air-fluid(saline) mixture to delineate it inside the trachea.

For the same reason (air reflecting ultrasound beams) the carina is difficult to visualize and one can use the aortic arch which is positioned just anterior to it instead.

This study apart from determining feasibility of the method may produce enough data from ultrasound exams to develop/derive a more pre-cise algorithm than available today aiding in positioning the endotracheal tube in regards to anatomic-al landmarks (teeth, gums, lips) even without the use of ultrasound. ;

Study Design

Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic

Related Conditions & MeSH terms

Intubation, Intratracheal

Clinical Trial Details

NCT number	NCT01649882
Study type	Interventional
Source	University of Arizona
Contact	Kai Schoenhage, MD
Phone	(520) 626-7221
Email	kschoenhage@anesth.arizona.edu
Status	Recruiting
Phase	N/A
Start date	July 2012
Completion date	June 2016

View Details

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