Tissue oxygenation response to mild hypercapnia during cardiopulmonary bypass with constant pump output O. Akça, D.I. Sessler, D. Delong, R. Keijner,

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Tissue oxygenation response to mild hypercapnia during cardiopulmonary bypass with constant pump output O. Akça, D.I. Sessler, D. Delong, R. Keijner, B. Ganzel, A.G. Doufas British Journal of Anaesthesia Volume 96, Issue 6, Pages 708-714 (June 2006) DOI: 10.1093/bja/ael093 Copyright © 2006 British Journal of Anaesthesia Terms and Conditions

Fig 1 Mean s.c. tissue oxygen tension values obtained via a polarographic electrode system at the end of the 30 min normocapnia (35 mm Hg P a CO 2 ) and hypercapnia (50 mm Hg P a CO 2 ) periods. There was no statistically significant difference in s.c. tissue oxygenation between the periods (P=0.335). British Journal of Anaesthesia 2006 96, 708-714DOI: (10.1093/bja/ael093) Copyright © 2006 British Journal of Anaesthesia Terms and Conditions

Fig 2 Mean cerebral oximeter saturation values obtained at the end of 30 min normocapnia (35 mm Hg P a CO 2 ) and hypercapnia (50 mm Hg P a CO 2 ) periods. Cerebral oxygen saturation was significantly greater during hypercapnia (P=0.025). British Journal of Anaesthesia 2006 96, 708-714DOI: (10.1093/bja/ael093) Copyright © 2006 British Journal of Anaesthesia Terms and Conditions

Fig 3 The correlation between the Psqo2 values obtained with the polarographic electrode (Licox) and fluoroscopic optode (Foxy) systems. British Journal of Anaesthesia 2006 96, 708-714DOI: (10.1093/bja/ael093) Copyright © 2006 British Journal of Anaesthesia Terms and Conditions

Fig 4 Bland–Altman analysis comparing the polarographic electrode (Licox) and fluoroscopic optode (Foxy) systems. The bias (average difference of Foxy minus Licox method) is plotted on the y-axis and the average of the Foxy and Licox values is plotted on the x-axis. The centre line represents the bias [6.8 (15.0)] whereas the top and bottom lines represent ±2 sds of the bias. British Journal of Anaesthesia 2006 96, 708-714DOI: (10.1093/bja/ael093) Copyright © 2006 British Journal of Anaesthesia Terms and Conditions