Journal of clinical monitoring and computing
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J Clin Monit Comput · Oct 2007
Clinical validation of a digital transcutaneous PCO2/SpO2 ear sensor in adult patients after cardiac surgery.
The aim of this study was to validate the V-Sign digital sensor (SenTec AG, Therweil, Switzerland) for combined noninvasive assessment of pulse oxymetric oxygen saturation (SpO(2)) and transcutaneous carbon dioxide tension (PtcCO(2)) in adults after cardiac surgery. ⋯ In the present state of development the SenTeC Digital monitor V-Sign device has serious limitations. Additional efforts are necessary to eliminate calibration failures and the initial overshoot of PtcCO(2) as well as to improve detection of SpO(2) and pulse rate.