Head Movement Effect on Different Tracheal Tubes

Status Withdrawn

Clinical Trial Summary

A breathing tube, which is used to secure the airway and allow ventilation of the lungs during general anaesthesia, is inserted into the windpipe either through the nose or mouth. In children, different formulas exist to determine the appropriate size of the tube according to age, and how far it should be advanced into the airway. Head movement can alter the position of the breathing tube, making it go in or come out too far. Different types of breathing tubes may also differ in their change of position with head movement. The aim of this study is to assess the accuracy of the formulae commonly used in our institution for depth of breathing tube placement, and to measure the degree of tube displacement on head movement with different types of tubes.

Clinical Trial Description

An endotracheal tube, which is used to secure the airway and allow ventilation of the lungs during general anesthesia, is inserted into the trachea either through the nose or mouth. In children, different formulae exist to determine the approximate size of the tube according to age, and how far it should be advanced into the airway. Once a tracheal tube is inserted, its position is routinely checked to make sure both lungs are ventilated. To prevent displacement, the tube is taped to the lip, chin or at the nose. However, head movement could cause alteration of the tube position, and risk selective endobronchial intubation or inadvertent extubation. Knowledge of how the different tracheal tubes move with head position can help determine the best tube selection to reduce the risk of accidental tube advancement or removal, in cases where certain head positions are required for surgical access.

The aim of this study is to assess the accuracy of the formulae commonly used in our institution for depth of breathing tube placement, and to measure the degree of tube displacement on head movement with different types of tube. Testing the formulae will enable us to be more aware of how frequently inaccurate tube placement may occur. Knowledge of how the different breathing tubes move with head position can help determine the best tube selection to reduce the risk of the tube going in too far or coming out accidentally, for cases were certain head positions are required for surgery. ;

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00687583
Study type	Observational
Source	The Hospital for Sick Children
Contact
Status	Withdrawn
Phase	Phase 4
Start date	April 2007
Completion date	January 2009

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See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.