The Effect of Speaking Valve on Physiological Parameters With Wearable Devices

A speaking valve (such as the common one-way valve/Passy-Muir type) is a one-way device attached to the external opening of a tracheostomy tube: the valve opens during inhalation, allowing air to flow in through the tracheostomy tube; it closes during exhalation, directing airflow upwards through the glottis and out through the mouth and nose, thereby restoring upper airway exhalation, vibrating the vocal cords to produce sound, and enhancing functions such as swallowing, smell, taste, and secretion clearance. This study aims to gather physiological parameter data using non-invasive wearable devices during speaking valve use, compare the differences between before and after wearing speaking valve.It also compares key physiological parameters between the group that can tolerate the speaking valve and the group that cannot. Identify objective indicators associated with successful tolerance.

Inclusion criteria

• Patient is not receiving mechanical ventilation.
• Tolerates cuff deflation.
• Upper airway patency is good, TTP < 10 cmH2O.
• Hemodynamically stable, no organ failure, and no sepsis, Pulmonary infection is controlled.
• PaCO2<60 mmHg.

Exclusion criteria

• Cannot tolerate deflation balloon.
• Severe upper airway obstruction
• Unstable vital signs.
• Thick secretions, compromised airway protection.
• PaCO2 ≥60 mmHg.