Urban Marie, Fouasson-Chailloux Alban, Signolet Isabelle, Colas Ribas Christophe, Feuilloy Mathieu, Abraham Pierre
1 University Hospital, Angers, France.
Vasa. 2015 Sep;44(5):355-62. doi: 10.1024/0301-1526/a000454.
We aimed at estimating the agreement between the Medicap" (photo-optical) and Radiometer• (electrochemical) sensors during exercise transcutaneous oxygen pressure ( tcp02) tests. Our hypothesis was that although absolute starting values (tcp02rest: mean over 2 minutes) might)e different, tcpOTchanges over time and the minimal value of the decrease from rest of oxygen pressure (DROPmin) results at exercise shall be concordant between the two systems. taneously, one of each system on the chest, on each buttock and on each calf.
Seventeen Medicap" probes disconnected during the tests. tcp02rest and DROPmin values were higher with Medicap• than with Radiometer•, by 13.7 ± 17.1mmHg and 3.4 ± 11.7 mmHg, respectively. Despite the differences in absolute starting values, changes over time were similar between the two systems. The concordance between the two systems was approximately 70% for classification of test results from DROPmin.
Photo-optical sensors are promising alternatives to electro-chemical sensors for exercise oximetry, provided that miniaturization and weight reduction of the new sensors are possible.
Forty seven patients with arterial claudication ( 65 ± 7 years) performed a treadmill test with 5 probes each of the electro-chemical and photo-optical devices simul-
我们旨在评估在运动经皮氧分压（tcpO₂）测试期间，Medicap（光电式）和Radiometer（电化学式）传感器之间的一致性。我们的假设是，尽管绝对起始值（tcpO₂rest：2分钟内的平均值）可能不同，但两个系统在运动期间tcpO₂随时间的变化以及氧分压从静息状态下降的最小值（DROPmin）结果应是一致的。47例间歇性跛行患者（65±7岁）同时使用电化学和光电设备的5个探头，在胸部、每个臀部和每个小腿上各放置一个系统的探头进行跑步机测试。
17个Medicap探头在测试期间断开连接。Medicap的tcpO₂rest和DROPmin值高于Radiometer，分别高13.7±17.1mmHg和3.4±11.7mmHg。尽管绝对起始值存在差异，但两个系统随时间的变化相似。根据DROPmin对测试结果进行分类时，两个系统之间的一致性约为70%。
如果新型传感器能够实现小型化和轻量化，那么光电传感器有望成为运动血氧测定中电化学传感器的替代方案。
47例间歇性跛行患者（65±7岁）同时使用电化学和光电设备的5个探头，在胸部、每个臀部和每个小腿上各放置一个系统的探头进行跑步机测试。
