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NEUROLOGY 2005;64:160-162
© 2005 American Academy of Neurology
Brief Communications

Arachnoid cysts cause cognitive deficits that improve after surgery

Maria Baroey Raeder, MD, Christian A. Helland, MD, Kenneth Hugdahl, PhD and Knut Wester, MD, PhD

Department of Neurosurgery (Drs. Raeder, Helland, Hugdahl, and Wester), Haukeland University Hospital, Bergen; and Departments of Biological and Medical Psychology (Dr. Hugdahl) and Surgical Sciences (Dr. Wester), University of Bergen, Norway.

Address correspondence and reprint requests to Dr. Knut Wester, Department of Neurosurgery, Haukeland University Hospital and Department of Surgical Sciences, University of Bergen, Jonas Liesvei 65, N-5021 Bergen, Norway; e-mail: knut.gustav.wester{at}helse-bergen.no

The authors investigated cognition in patients with arachnoid cysts by assessing 55 patients and 32 control subjects on four different cognitive tests preoperatively and 3 months postoperatively. The patients improved their performance from preoperative to postoperative testing, whereas the control subjects did not show a similar improvement.

Received March 26, 2004. Accepted in final form August 18, 2004.




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