Respiratory care
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Randomized Controlled Trial
Alleviation of Dyspnea and Changes in Physical Activity Level by Blowing Air to the Face with a Fan.
Dyspnea is an unpleasant subjective symptom and is associated with decreased physical activity level (PAL). Effect of blowing air toward the face has received a great deal of attention as a symptomatic therapy for dyspnea. However, little is known about the duration of its effect and its impact on PAL. Therefore, this study aimed to measure dyspnea severity and changes in dyspnea and PALs with air blasts to the face. ⋯ No significant difference was observed for dyspnea and PALs in subjects after blowing air toward their own faces with a small fan for 3 weeks at home. Disease variability and impact of protocol violations were high due to small number of cases. Further studies with a design focused on subject protocol adherence and measurement methods are required to understand impact of air flow on dyspnea and PAL.
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Randomized Controlled Trial
Automated Oxygen Titration During CPAP and Noninvasive Ventilation in Healthy Subjects With Induced Hypoxemia.
Automated oxygen titration to maintain a stable SpO2 has been developed for spontaneously breathing patients but has not been evaluated during CPAP and noninvasive ventilation (NIV). ⋯ In this proof-of-concept study, automated oxygen titration was used during CPAP and NIV. The performances to maintain the SpO2 target were significantly better compared to manual oxygen titration in the setting of this study protocol. This technology may allow decreasing the number of manual interventions for oxygen titration during CPAP and NIV.