Gélis Anthony, Fattal Charles, Dupeyron Arnaud, Pérez-Martin Antonia, Colin Denis, Pelissier Jacques
Département de Médecine Physique et de Réadaptation, Centre Hospitalo-Universitaire Caremeau, Nîmes, France.
Arch Phys Med Rehabil. 2009 Mar;90(3):507-11. doi: 10.1016/j.apmr.2008.09.564.
To assess the reproducibility and the effects of the subjects' characteristics on the reproducibility of transcutaneous oxygen pressure (TcPO2) measurements in the sacral area in persons with spinal cord injury during loading in the supine position.
Test-retest study.
Physical medicine and rehabilitation center.
Thirty spinal cord-injured American Spinal Injury Association grade A subjects.
Two TcPO2 monitoring sessions in the sacral area during loading in the supine position were performed at 24-hour intervals, including the measurement of absolute resting sacral and chest TcPO2 values and the calculation of regional perfusion index (RPI) and delta from rest oxygen pressure, taking into account systemic TcPO2 changes.
The intraclass coefficient of the sacral TcPO2 absolute resting value, RPI, and delta from rest oxygen pressure was .787 and .798, .704 and .635, .760 and .465, respectively, at 20 and 40 minutes. The only characteristic with an influence on RPI reproducibility was the subject's smoking status, whereas age, weight, time since injury, lesion level, and presence of pressure ulcer showed no influence.
TcPO2 measurement is a reproducible method for assessing cutaneous microcirculation during loading over 20-minute monitoring sessions, with RPI exhibiting better reproducibility than delta from rest oxygen pressure at 40 minutes.
评估脊髓损伤患者在仰卧位负荷期间，经皮氧分压（TcPO2）测量在骶部区域的可重复性以及受试者特征对其可重复性的影响。
重测研究。
物理医学与康复中心。
30名美国脊髓损伤协会A级脊髓损伤受试者。
在仰卧位负荷期间，每隔24小时在骶部区域进行两次TcPO2监测，包括测量静息时骶部和胸部的绝对TcPO2值，以及计算区域灌注指数（RPI）和静息氧压差值，并考虑全身TcPO2变化。
在20分钟和40分钟时，骶部TcPO2绝对静息值、RPI以及静息氧压差值的组内相关系数分别为0.787和0.798、0.704和0.635、0.760和0.465。对RPI可重复性有影响的唯一特征是受试者的吸烟状况，而年龄、体重、受伤时间、损伤水平和压疮的存在均无影响。
在20分钟的监测期间，TcPO2测量是评估负荷期间皮肤微循环的一种可重复方法，在40分钟时，RPI的可重复性优于静息氧压差值。
