Bilateral Simultaneous Monitoring of Regional Cerebrovascular Oxygen Saturation Using Near-Infrared Spectroscopy

  • Issei Nara
  • Toshiyuki Shiogai
  • Nahoko Tanaka
  • Manabu Tokitsu
  • Isamu Saito


Near-infrared spectroscopy recently has come to be utilized in neurointensive care settings for continuous, noninvasive, and bedside evaluation of regional oxygen metabolism and hemodynamics [1–3]. Using near-infrared spectroscopy, regional cerebrovascular oxygen saturation (rSO2) can be calculated [2, 4] on the basis of measured oxyhemoglobin and deoxyhemoglobin. Normal control values of rSO2 in multiple cerebral regions, however, have not been fully established by means of near-infrared spectroscopy. Furthermore, the correlation of rSO2 with other modalities utilized in neurointensive care, such as intracranial pressure (ICP) [5] and jugular bulb venous oxygen saturation (SjO2) [6], has been attempted experimentally or in intraoperative monitoring but these results have not been conclusive.


Frontal Lobe Regional Cerebral Blood Flow Decompressive Craniectomy Cerebral Oxygen Acute Subdural Hematoma 
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Copyright information

© Springer-Verlag Tokyo 1995

Authors and Affiliations

  • Issei Nara
    • 1
  • Toshiyuki Shiogai
    • 1
  • Nahoko Tanaka
    • 1
  • Manabu Tokitsu
    • 1
  • Isamu Saito
    • 1
  1. 1.Department of NeurosurgeryKyorin University School of MedicineMitaka, Tokyo 181Japan

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