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Title: Ambulatory Measurement of Transcutaneous Pco(2)
Author(s): B. Garssen, M. Buikhuisen, H. Hornsveld, C. Klaver and L. van Doornen
Journal: Journal of Psychophysiology
Year: 1994
Volume: 8
Issue: 3
Pages: 231--240
Publisher address: FREE UNIV AMSTERDAM,INST RES EXTRAMURAL MED,AMSTERDAM,NETHERLANDS FREE UNIV AMSTERDAM,DEPT PSYCHIAT,1007 MC AMSTERDAM,NETHERLANDS UNIV AMSTERDAM,DEPT MED PSYCHOL,AMSTERDAM,NETHERLANDS SLOTERVAART HOSP,AMSTERDAM,NETHERLANDS FREE UNIV AMSTERDAM,DEPT PSYCHOL
ISSN: 0269-8803
File URL: vuams-pubs/Garssen_1994.pdf
Keywords: ADULTS, AMBULATORY MONITORING, CUTANEOUS CARBON-DIOXIDE, GENERALIZED ANXIETY DISORDER, Hyperventilation, hyperventilation syndrome, INTENSIVE-CARE, OXYGEN, P(TC)CO(2), PANIC DISORDER, PCO2, Psychophysiology, Research, Respiration, Time, TRANSCUTANEOUS PCO(2), VOLUNTARY HYPERVENTILATION
Abstract: Equipment has for some time been available for ambulatory measurement of aspects of respiration, such as rate, depth, minute volume, irregularity and sighs, but not until recently for arterial Pco(2). A system for ambulatory measurement of transcutaneous Pco(2) (P(tc)co(2)) has been developed and is tested in the present study The P(tc)co(2) gives an accurate estimate of end-tidal Pco(2); correlation coefficients were between .95 and 1.00. Response of the P(tc)co(2) measuring device was rather delayed: the time elapsing between a sudden change in arterial Pco(2) and the monitor output showing the correct value +/- 10% was about two to three minutes. However, hyperventilation episodes lasting as little as 1.5 minutes could be easily detected. This method offers interesting opportunities for research in clinical psychophysiology

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