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Transcutaneous Oxygen Tension Measurement I. Age Variation and Reproducibility
Author(s) -
Gøthgen I.,
Jcobsen E.
Publication year - 1978
Publication title -
acta anaesthesiologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 107
eISSN - 1399-6576
pISSN - 0001-5172
DOI - 10.1111/j.1399-6576.1978.tb01376.x
Subject(s) - medicine , reproducibility , arterial oxygen tension , confidence interval , oxygen tension , cardiology , oxygen , chromatography , lung , chemistry , organic chemistry
In 20 patients, aged 19–80 y and without pulmonary or cardiovascular disease, transcutaneous oxygen tension (tcPo 2 ) and arterial oxygen tension (Pao 2 ) were measured. tcPo 2 was measured with a Radiometer®TCM‐I (transcutaneous oxygen monitor) at 43 C°. The age regression for tcPo 2 was: tcPo 2 = 10.4–0.035 × age (r = 0.406); the corresponding equation for Po 2 was: 13.8–0.053 × age (r = 0.687). The mean difference between tcPo 2 and Pao 2 was 2.6 kPa (s.d. = 0.97) and the ratio tcPo 2 / Pao 2 was 0.8. The accuracy of tcPo 2 at the level 5.3–13.2 kPa based on 480 measurements was on the averagef 1.28 kPa (maximum ± 1.73 kPa) at the 95% confidence level. The accuracy of tcPo 2 measurements is acceptable for clinical use, and in healthy adults tcPo, reflects Pao 2 .