Postoperative confusion preceded by decreased frontal lobe haemoglobin oxygen saturation
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Updated: Oct 15, 2026

Real-Time Monitoring of Neurocritical Patients with Diffuse Optical Spectroscopies
Published on: November 19, 2020
1Department of Anaesthesia, Rigshospitalet, University of Copenhagen, Denmark.
Abstract:
We describe a 58-year-old male patient with confusion and prolonged recovery after liver transplantation. A cause was not apparent for the confusion, but during surgery, monitoring of the frontal lobe cerebral haemoglobin oxygen saturation by near-infrared spectrophotometry showed cerebral hypo-oxygenation despite optimization of conventional cardiovascular parameters. It is possible that intraoperative cerebral ischaemia is the cause of postsurgical confusion and with near-infrared spectrophotometry this hypothesis may be tested clinically.
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