Patients after cardiac surgical operations often exhibit neuropsychological complications. In particular, the post-operative delirium is associated with a significantly increased morbidity and mortality. Intracerebral microembolization in addition to inadequate cerebral perfusion during surgery was verified as the main cause of this. The aim of the study is to demonstrate a correlation between intraoperative low measured cerebral oxygen levels and a loss neurological outcome, especially the development of postoperative delirium, using non-invasive cerebral oximetry (RSO2).
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CAM-ICU (Confusion Assessment Method for the Intensive Care Unit) Questionnaire
Timeframe: Changes between 6 - 48 hours before surgery and 12 hours after surgery