Sonomatic confirmation of tracheal intubation using the SCOTI

Area of Science:

• Medical Devices
• Emergency Medicine
• Anesthesiology

Background:

• Accurate endotracheal tube (ET) placement is critical for effective ventilation.
• Several devices exist to confirm ET tube position, including Oesophageal Detector Devices (ODDs) and sonomatic devices.
• Limitations of capnometry exist in certain clinical scenarios, such as during cardiopulmonary resuscitation (CPR).

Purpose of the Study:

• To compare the performance of the Ambu TubeChek (ODD) and the Sonomatic Confirmation of Tracheal Intubation (SCOTI) device.
• To evaluate their efficacy in establishing correct endotracheal tube position in a mannequin and miniature pigs.
• To determine the preferred device in situations where capnometry is unreliable.

Main Methods:

• Comparative performance evaluation of Ambu TubeChek (syringe-type ODD) and SCOTI (sonomatic device).
• Testing conducted on a mannequin and in miniature pigs.
• Assessment of speed, ease of use, and accuracy in differentiating esophageal from tracheal tube placement.

Main Results:

• Ambu TubeChek (ODD) demonstrated significantly faster and easier endotracheal tube position assessment compared to SCOTI.
• SCOTI failed to differentiate tracheal from esophageal ET-tube position in miniature pigs.
• ODD's functionality relies on airway compliance differences (trachea vs. esophagus).

Conclusions:

• Oesophageal Detector Devices (ODDs), like the Ambu TubeChek, are recommended over the SCOTI device.
• ODDs are particularly valuable when capnometry is unavailable or CO2 production/transport is compromised (e.g., CPR).
• Further research may be needed to refine sonomatic device performance for diverse clinical settings.