The Role of Serum Anticholinergic Activity in ACVB Patients

Serum Anticholinergic Activity (SAA) and BIS-EEG as Potential Markers for Cognitive Ability and/or the Anticholinergic Medication in ACVB Patients

Drugs with anticholinergic potential increase the risk of postoperative transient and persistent cognitive dysfunction especially in cardiac patients. The investigators main goal is to identify preoperative risk factors and to monitor postoperative patients' state in relation to SAA activity and bilateral BIS-EEG changes.

Inclusion Criteria:

• written compliance to the study participation
• a good knowledge in German speech
• no red/ green blindness
• no previous neurological and/or psychiatric illness
• good ability to see and to hear
• Mini-Mental-State-Examination (MMSE) better than 25 points

Exclusion Criteria:

• no written compliance to the study participation
• bad knowledge in German speech
• red/ green blindness
• previous neurological and/or psychiatric illness
• no ability to see and to hear
• Mini-Mental-State-Examination (MMSE) lower than 25 points