Electrical Impedance Tomography for Endotracheal Tube Placement

Study Overview
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Brief Summary
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Endobronchial tube misplacement is serious complication during general anesthesia in pediatric patients. Correct placement of the endotracheal tube (ETT) in the trachea is crucial. Several methods have been suggested for determination of correct ETT placement. However, to date, auscultation of the left and right lung is the standard of care and the only ubiquitary available method with an error rate of up to 12%. Electrical impedance tomography (EIT) is a new non-invasive method for evaluation of left and right lung ventilation. In this study the investigators investigate the potential role of EIT for proper placement of pediatric endotracheal tubes.

Detailed Description
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Several methods have been suggested for determination of correct ETT placement. These include for example the marker method, the mainstem method or the formula method. However, to date, auscultation of the left and right lung is the standard of care and the only ubiquitary available method with an error rate of up to 12%. Electrical impedance tomography (EIT) is a new non-invasive method for evaluation of left and right lung ventilation. In this study the investigators investigate the potential role of EIT for proper placement of pediatric endotracheal tubes. For this purpose, pediatric patients are routinely intubated for cardiac catheterization using the mainstem method or 3xETT size method. Placement of the ETT is then verified by intraoperative fluoroscopy and lung ventilation is verified by EIT.

Official Title
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Electrical Impedance Tomography for Endotracheal Tube Placement in Pediatric Patients

Conditions
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Endotracheal Tube Placement

Intervention / Treatment
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* Device: measurement of left and right lung ventilation


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: written informed consent from the parents endotracheal intubation with a standard endotracheal tube Exclusion Criteria: refusal of written informed consent severe lung diseases contraindication for use of electrical impedance tomography

Ages Eligible for Study
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Minimum Age: 1 Week
Maximum Age: 10 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: pediatric<br> | Device: measurement of left and right lung ventilation<br>* Patients are ventilated after endotracheal tube placement and left and right lung ventilation if determined using electrical impedance tomography<br>* Other names: EIT, Draeger;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| determination of proper endotracheal tube placement |  | endotracheal tube placement is immediately verified after endotracheal intubation with fluoroscopy and electrical impedance tomography during the general anesthesia for cardiac catheterization | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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pediatric anesthesia, endotracheal tube, electrical impedance tomography, misplacement, endobronchial