A randomised trial of domiciliary, ambulatory oxygen in patients with COPD and dyspnoea but without resting hypoxaemia.

摘要

We read with great interest the recently published article by Moore et al and we would like to make the following remarks. Desaturation with exercise is still a hotly debated issue, and the papers that deal with the effectiveness of oxygen therapy during exercise in patients with chronic obstructive pulmonary disease who desaturate have not shown any benefit. It should nevertheless be pointed out that there are different types of desaturating patients with exercise. Indeed, we recently published a paper the results of which clearly show that only patients who desaturate before 1 min-early desaturators-during the 6-minute walking test are associated with an important desaturation during daily life activities.