Georg Grubhofer, Andrea M. Lassnigg, Barbara Schneider, Maria A

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Date of download: 6/22/2016 Copyright © 2016 SPIE. All rights reserved. Changes in cerebral oxygenation and middle cerebral artery blood flow during carotid.

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Presentation transcript:

Jugular Venous Bulb Oxygen Saturation Depends on Blood Pressure During Cardiopulmonary Bypass Georg Grubhofer, Andrea M. Lassnigg, Barbara Schneider, Maria A. Rajek, Thomas Pernerstorfer, Michael J. Hiesmayr The Annals of Thoracic Surgery Volume 65, Issue 3, Pages 653-657 (March 1998) DOI: 10.1016/S0003-4975(97)01354-4

Fig. 1 The effect of cerebral perfusion pressure (CPP) on jugular venous bulb oxygenation saturation (SjvO2) during hypothermic cardiopulmonary bypass in 17 individual patients. The left side of the graph indicates changes in SjvO2 after an increase in CPP induced by phenylephrine infusion, and the right side shows the relation of SjvO2 and CPP after a decrease in CPP to baseline levels. The Annals of Thoracic Surgery 1998 65, 653-657DOI: (10.1016/S0003-4975(97)01354-4)

Fig. 2 Plot of a continuous recording of measured variables in a typical case. Immediately after phenylephrine infusion, cerebral perfusion pressure (CPP) and jugular venous bulb oxygen saturation (SjvO2) increased. All temperatures remained constant over the 20-minute study period. At the end of the recording, CPP and SjvO2 reached stable levels similar to baseline values, suggesting an insignificant effect of changes in brain temperature on measured SjvO2 values. (CPB = cardiopulmonary bypass; T nas = nasopharyngeal temperature; T vesic = vesical temperature.) The Annals of Thoracic Surgery 1998 65, 653-657DOI: (10.1016/S0003-4975(97)01354-4)