Tracheostomy is often performed in patients after or anticipated prolonged mechanical ventilation, who are usually required oxygen therapy after discontinuation of mechanical ventilation.
Tracheostomy is often performed in patients after or anticipated prolonged mechanical ventilation, who are usually required oxygen therapy after discontinuation of mechanical ventilation.The high-flow tracheal (HFT) oxygen therapy in tracheostomized patients has been shown that can improve oxygenation,but can not induce positive end-expiratory pressure and elevation of end-expiratory lung volume. A modified HFT system by increasing expiratory resistance might induce PEEP and consequently elevate EELV.
Study Type
OBSERVATIONAL
Enrollment
20
The HFT was modified by increasing the expiratory resistance.
Jian-Xin Zhou
Beijing, Beijing Municipality, China
The mean end expiratory pressure.
The patients was delivering the high flow oxygen via the standard and modified HFT interface for 20 minutes.
Time frame: the last 1 minutes of steady breathing during the standard or modified HFT.
Changes in global and regional EELV
The Electrical impedance tomography (EIT) was applied in monitoring the change of EELV at the bedside.
Time frame: the last 1 minutes of steady breathing during the standard or modified HFT.
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