Wedzicha J A
Respiratory Care Unit, London Chest Hospital, UK.
Monaldi Arch Chest Dis. 1996 Jun;51(3):243-5.
Ambulatory oxygen therapy in patients with COPD and exercise hypoxaemia may improve exercise capacity and breathlessness. The improvement in exercise tolerance is related to the degree of exercise hypoxaemia. As effects from ambulatory oxygen therapy are prone to placebo effects, careful patient selection is required, with formal assessment. For effective ambulatory oxygen delivery, oxygen should be provided either by small liquid oxygen tanks or by small lightweight cylinders and conserving devices. Studies are required to evaluate the longer term effects of ambulatory oxygen on daily life.
慢性阻塞性肺疾病（COPD）合并运动性低氧血症患者的门诊氧疗可能会改善运动能力和呼吸急促症状。运动耐量的改善与运动性低氧血症的程度有关。由于门诊氧疗的效果容易受到安慰剂效应的影响，因此需要通过正式评估仔细选择患者。为了有效地进行门诊氧疗，应使用小型液氧罐或小型轻质气瓶及氧疗节省装置来提供氧气。需要开展研究以评估门诊氧疗对日常生活的长期影响。
