Table of Contents
ISRN Neurology
Volume 2012, Article ID 907187, 7 pages
http://dx.doi.org/10.5402/2012/907187
Research Article

Continuous Measurement of Cerebral Oxygenation with Near-Infrared Spectroscopy after Spontaneous Subarachnoid Hemorrhage

Department of Neurosurgery, University Hospitals Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany

Received 14 September 2012; Accepted 15 October 2012

Academic Editors: W. D. Dietrich and R. L. Macdonald

Copyright © 2012 Homajoun Maslehaty et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. The aim of our prospective study was to investigate the applicability and the diagnostic value of near-infrared spectroscopy (NIRS) in SAH patients using the cerebral oximeter INVOS 5100C. Methods. Measurement of cerebral oximetry was done continuously after spontaneous SAH. Decrease of regional oxygen saturation (rSO2) was analyzed and interpreted in view of the determined intrinsic and extrinsic factors. Changes of rSO2 values were matched with the values of ICP, tipO2, and TCD and the results of additional neuroimaging. Results. Continuous measurement of rSO2 was performed in nine patients with SAH (7 females and 2 males). Mean measurement time was 8.6 days (range 2–12 days). The clinical course was uneventful in 7 patients without occurrence of CVS. In these patients, NIRS measured constant and stable rSO2 values without relevant alterations. Special findings are demonstrated in 3 cases. Conclusion. Measurement of rSO2 with NIRS is a safe, easy to use, noninvasive additional measurement tool for cerebral oxygenation, which is used routinely during vascular and cardiac surgical procedures. NIRS is applicable over a long time period after SAH, especially in alert patients without invasive probes. Our observations were promising, whereby larger studies are needed to answer the open questions.