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The value of continuous transcutaneous oxygen (PtcO2) monitoring in the presence of halothane and nitrous oxide (N2O) was studied in 10 infants. All infants were continuously monitored during the study with a Clark-type skin electrode with Mylar membrane. The polarization voltage of the membrane was changed to 600 mV to make it insensitive to N2O and halothane. The accuracy of PtcO2 electrode was compared with simultaneously measured PaO2 at different intervals. Correlation of PaO2 with PtcO2 was sought during hypoxic-normoxic state (PaO2 between 27--92 torr) and hyperoxic state (PaO2 between 105--439 torr). During hypoxic-normoxic state, the correlation between PaO2 and PtcO2 values was 0.94. During the hyperoxic state, poor correlation existed between PaO2 and PtcO2 (r = 0.51). Although PtcO2 did not correlate with PaO2 during hyperoxia, it consistently overestimated PaO2 and thereby, provided a predictive ability by over-diagnosing hyperoxia. When combined with continuous monitoring of inspired oxygen tension to maintain normoxia, continuous monitoring of PtcO2 will reduce the frequency of PaO2 analysis and improve patient care during anesthesia.
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Birth defects original article series,
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Intensive care medicine,
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Critical care medicine,
B Venus, and
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International journal of clinical monitoring and computing,
B Venus, and
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D Vidyasagar
February 1985,
Critical care medicine,
B Venus, and
K C Patel, and
K S Pratap, and
H Konchigeri, and
D Vidyasagar
January 1979,
Birth defects original article series,
B Venus, and
K C Patel, and
K S Pratap, and
H Konchigeri, and
D Vidyasagar
June 1991,
Zhongguo yi xue ke xue yuan xue bao. Acta Academiae Medicinae Sinicae,
B Venus, and
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D Vidyasagar
February 1978,
Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen,
B Venus, and
K C Patel, and
K S Pratap, and
H Konchigeri, and
D Vidyasagar
December 1985,
Agressologie: revue internationale de physio-biologie et de pharmacologie appliquees aux effets de l'agression,
B Venus, and
K C Patel, and
K S Pratap, and
H Konchigeri, and
D Vidyasagar
February 1980,
Pediatrics,
