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Reliability of skin (tc)PO<inf>2</inf> electrode heating power as a continuous noninvasive monitor of mean arterial pressure in sick newborns

Abstract:

The development of transcutaneous blood gas analysis has greatly reduced the need for arterial catheterization of sick infants. Further reduction would be possible if a noninvasive method for continuous blood pressure monitoring were available. We have reported the use of the heating power of the Huch tcPO2 electrode as a monitor of central arterial pressure in 18 sick infants. Qualitatively, the correlation between ΔHP and ̄P(Ao) was excellent in 15 of the infants. The quantitative reliability of this technique is adversely affected by factors compromising blood flow to the leg. Further work must be done to expand our understanding and use of this measurement.