1 Divisions of Perinatal Physiology and Neonatology, Department of Obstetrics and Gynaecology, University Hospital, Zurich
Monitoring of transcutaneous oxygen pressure (Po2) is a routine procedure in the management of sick newborn infants. The clinician frequently requires information on trends in transcutaneous Po2 and variability in relation to clinical procedures. However, long-term measurement of transcutaneous Po2 presents problems with documentation and analysis of the data (Fig 1).1-9
PRINCIPLE OF TRANSCUTANEOUS Po2 HISTOGRAM
To analyze transcutaneous Po2 information in a simple and efficient way, one can observe the frequency distribution of measured transcutaneous Po2 values within a desired time interval, instead of examining a long paper chart from a trend recorder. This method is shown in Fig 2.