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Review
. 2014 Mar;6 Suppl 1(Suppl 1):S60-9.
doi: 10.3978/j.issn.2072-1439.2013.10.22.

Cerebral oximetry in cardiac anesthesia

George Vretzakis  1 , Stauroula Georgopoulou  1 , Konstantinos Stamoulis  1 , Georgia Stamatiou  1 , Kosmas Tsakiridis  1 , Paul Zarogoulidis  1 , Nikolaos Katsikogianis  1 , Ioanna Kougioumtzi  1 , Nikolaos Machairiotis  1 , Theodora Tsiouda  1 , Andreas Mpakas  1 , Thomas Beleveslis  1 , Alexander Koletas  1 , Stavros N Siminelakis  1 , Konstantinos Zarogoulidis  1
Affiliations
Review

Cerebral oximetry in cardiac anesthesia

George Vretzakis et al. J Thorac Dis. 2014 Mar.

Abstract

Cerebral oximetry based on near-infrared spectroscopy (NIRS) is increasingly used during the perioperative period of cardiovascular operations. It is a noninvasive technology that can monitor the regional oxygen saturation of the frontal cortex. Current literature indicates that it can stratify patients preoperatively according their risk. Intraoperatively, it provides continuous information about brain oxygenation and allows the use of brain as sentinel organ indexing overall organ perfusion and injury. This review focuses on the clinical validity and applicability of this monitor for cardiac surgical patients.

Keywords: Cerebral; anesthesia; brain; cardiac; monitor; oximetry; surgery.

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Figures

Figure 1
Figure 1
Hematocrit values in two groups of cardiac surgery patients operated on-pump. In group A (bold line, rhombus) a restrictive fluid protocol was applied and decision for blood transfusion was aided by cerebral oximetry values. As it is shown in the table, patients in this group received significantly less blood transfusions in OR and in total hospitalization compared to controls (group B) (66). (y axis, hematocrit values in %; numbers in x axis correspond in preoperative, after arterial line placement, after anesthesia induction, after first cardioplegia, end of CPB, end of operation, 6 hours in the ICU, 12 hours in the ICU, day of discharge; PRC, packed red cells; OR, operating room; ICU, intensive care unit).
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