Respiratory medicine
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Respiratory medicine · Oct 2004
Comparative StudyComparison of four demand oxygen delivery systems at rest and during exercise for chronic obstructive pulmonary disease.
The aim of this study was to assess the performance of four demand oxygen delivery systems (DODS) in improving oxygenation and effort tolerance, at rest and during exercise, in chronic obstructive pulmonary disease (COPD) patients. ⋯ All four DODS improved oxygen saturation and saved oxygen. However, performance was better with the two devices (Oxiclip and Venture) that deliver a bolus of oxygen at inspiration onset.