ESTIMATION OF ARTERIAL OXYGEN-TENSION IN ADULT SUBJECTS USING A TRANS-CUTANEOUS ELECTRODE
ESTIMATION OF ARTERIAL OXYGEN-TENSION IN ADULT SUBJECTS USING A TRANS-CUTANEOUS ELECTRODE
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DOI：
10.1136/thx.36.6.473
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发表时间：
1981-01-01
期刊：
影响因子：
10
通讯作者：
HONEYBOURNE, D
中科院分区：
文献类型：
--
作者：
HUTCHISON, DCS;ROCCA, G;HONEYBOURNE, D
将用加热电极测量的经皮氧分压 (tcPO2) 与 3 组成年患者的动脉氧分压 (PaO2) 进行比较：A 组，20 名患有慢性呼吸道疾病的患者；A 组，20 名患有慢性呼吸道疾病的患者； B组，8例体外循环手术后立即进行低温研究； C组；对重症监护病房的 14 名患者进行了 35 次 tcPO2 和 PaO2 比较。对于 A 组，两种方法的关系由回归方程（以 mm Hg 为单位）给出：tcPO2 = 0.88 PaO2 + 5.0 (SE = 5.2；r = 0.93；P < 0.001)；对于 C 组，tcPO2 = 0.69 PaO2 + 14.9 (SE = 12.0，r = 0.90；P < 0.001)。 0.001）。使用单一动脉血样进行体内校准的方法提高了 C 组方法的可靠性。在 B 组患者中，即使对皮肤进行补充加热，tcPO2 和 PaO2 之间也没有相关性。连续监测可以揭示动脉 PO2 的大幅波动，而使用间歇性动脉样本可能会漏掉这种波动。经皮电极可有效用于成年患者的重症监护监测以及需要重复动脉样本的生理研究。
Transcutaneous O2 tension (tcPO2) measured with a heated electrode was compared to arterial O2 tension (PaO2) in 3 groups of adult patients: group A, 20 patients with chronic respiratory disease; group B, 8 hypothermic patents studied immediately after cardiopulmonary bypass surgery; group C; 14 patients in an intensive care unit who had 35 comparisons of tcPO2 and PaO2. For group A, the relationship of the 2 methods is given by the regression equation (in mm Hg): tcPO2 = 0.88 PaO2 + 5.0 (SE = 5.2; r = 0.93; P < 0.001) and for group C tcPO2 = 0.69 PaO2 + 14.9 (SE = 12.0, r = 0.90; P < 0.001). A method of in vivo calibration using a single arterial blood sample improved the reliability of the method in group C. In the group B patients there was no correlation between tcPO2 and PaO2, even when supplementary heating was applied to the skin. Continuous monitoring can reveal large fluctuations in arterial PO2 which would be missed by the use of intermittent arterial samples. The transcutaneous electrode can be employed usefully in intensive care monitoring of adult patients and in physiological studies where repeated arterial samples would otherwise be required.