This study will compare the impact of the Double-Trunk Mask (DTM) with the Non-Rebreather Mask (NRM) on the blood gases of patients with severe hypoxemia.
The Double-Trunk Mask (DTM) is a device designed to increase the fraction of inspired oxygen in patients who receive oxygen therapy. The mask is composed of a regular aerosol mask with corrugated tubing (15 cm length) inserted into two lateral holes. Each included patient will wear the standard Non-Rebreather Mask (NRM) which is the standard delivery oxygen system for patients with acute severe hypoxemia. Then the patients will wear the DTM for 30 minutes. Finally the DTM will be replaced by the NRM for the next 30 minutes. The impact of both oxygen delivery system will be assessed by measuring the change of blood gases with each system.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
NONE
Enrollment
25
The DTM (oxygen delivery system) is worn by the patient for 30 minutes.
The NRM (standard oxygen delivery system) is worn by the patient for 30 minutes.
Cliniques universitaires Saint-Luc
Brussels, Brussels Capital, Belgium
Epicura
Hornu, Belgium
Centre Hospitalier Universitaire de Tivoli
La Louvière, Belgium
Changes in PaO2
Oxygen tension (PaO2) in mmHg will be analyzed from a sample taken from the arterial system
Time frame: At baseline and 30 minutes after wearing DTM
Changes in PaCO2
Carbon dioxide tension (PaCO2) in mmHg will be analyzed from a sample taken from the arterial system
Time frame: At baseline and 30 minutes after wearing DTM
Changes in pH
Potential of Hydrogen (pH) will be analyzed from a sample taken from the arterial system.
Time frame: At baseline and 30 minutes after wearing DTM
Changes in respiratory rate
Respiratory rate is measured during one minute by visual inspection.
Time frame: At baseline and 30 minutes after wearing both systems
Comfort with the oxygen delivery systems
A Likert scale from -5 to +5 will be used to measure the subjective comfort of the patient while wearing both oxygen delivery systems
Time frame: 30 minutes after wearing both systems
Dyspnea with the oxygen delivery systems
A Visual Analogic Scale 0 to 10 will be used to measure the dyspnea of the patient while wearing both oxygen delivery systems
Time frame: 30 minutes after wearing both systems
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