• J Neuropsychiatry Clin Neurosci · Jan 2010

    Increased cortisol levels and anticholinergic activity in cognitively unimpaired patients.

    • Konstanze Plaschke, Jürgen Kopitz, Johannes Mattern, Eike Martin, and Peter Teschendorf.
    • Department of Anesthesiology, University of Heidelberg, Heidelberg, Germany. konstanze.plaschke@med.uni-heidelberg.de
    • J Neuropsychiatry Clin Neurosci. 2010 Jan 1;22(4):433-41.

    AbstractIncreased patients' serum anticholinergic activity (SAA) is described as a marker of cognitive dysfunction and can be influenced by different exogenous and endogenous factors. The role of cortisol in relation to SAA and cognition in perioperative conditions has not been investigated so far. In 30 men scheduled for urological surgery, the authors determined SAA and cortisol levels in blood and CSF and conducted neuropsychological testing in two subgroups with comparable pre- and intraoperative characteristics, one group with low SAA (mean=2.4 [SD=0.9], n=23) and the other with high SAA (mean=5.1 [SD=2.4], n=7) values. Increased SAA was associated with two times the number of anticholinergic medications but not with patients' age, medical history or impaired cognition. A significant linear correlation was detected between anticholinergic activities and cortisol levels. Thus, endogenous factors such as patients' stress levels should be taken into account for interpretation of the role of SAA.

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