Carlin B W, Clausen J L, Ries A L
Division of Pulmonary and Critical Care Medicine, University of California School of Medicine, San Diego, USA.
Chest. 1994 Aug;106(2):361-5. doi: 10.1378/chest.106.2.361.
This study reviews the effects of using oxygen saturation measurements during exercise and the effects of the method of exercise testing on the prescription of oxygen therapy. Using cutaneous oximetry (designated A and B models) and co-oximetry, 25 of 41 patients (model A), 30 of 39 patients (model B), and 28 of 42 patients (co-oximetry) had an oxygen saturation measurement greater than 85 percent at maximal incremental exercise despite an arterial oxygen tension less than 55 mm Hg. Also, in a group of patients who underwent incremental followed by constant work rate testing, 9 of 28 exhibited a fall in arterial oxygen tension to 55 mm Hg or below only during the constant work rate testing. Oxygen saturation measurements cannot reliably be used as a substitute for arterial oxygen tension measurements for the prescription of oxygen therapy. The type of exercise study performed may influence the outcome of such oxygen prescription.
本研究回顾了运动期间使用血氧饱和度测量的效果以及运动测试方法对氧疗处方的影响。使用经皮血氧测定法（指定为A和B型号）和血气共分析，在41例患者中有25例（A型号）、39例患者中有30例（B型号）以及42例患者中有28例（血气共分析）在最大递增运动时血氧饱和度测量值大于85%，尽管动脉血氧分压低于55mmHg。此外，在一组先进行递增然后进行恒定工作率测试的患者中，28例中有9例仅在恒定工作率测试期间动脉血氧分压降至55mmHg或更低。对于氧疗处方，血氧饱和度测量不能可靠地替代动脉血氧分压测量。所进行的运动研究类型可能会影响此类氧疗处方的结果。
