Measuring of Cognitive Deficit after Cerebral Aneurysm Intervention


Authors: L. Krámská 1;  M. Preiss2 ,3;  J. Hradil 4
Authors‘ workplace: Neurologické oddělení, Nemocnice Na Homolce, Praha 1;  Psychiatrické centrum Praha 2;  University of New York, Praha 3;  Neurochirurgie, Krajská nemocnice Liberec, a. s. 4
Published in: Cesk Slov Neurol N 2012; 75/108(2): 185-190
Category: Original Paper

Overview

This study focuses on an assessment of cognitive functions in patients after cerebral artery aneurysm surgery. 

The main research problem is to obtain a valid assessment pertaining to the decrease of cognitive performance. Authors discuss routine clinical techniques which are applied in day to day practice in the Czech Republic – comparison of Full-Scale IQ with a reference norm and difference between verbal and performance IQ. Eighty out of the 168 patients were neuropsychologically evaluated for 1.7 years after the operation. 

The mean Full-Scale, Verbal and Performance IQ significantly decreased in comparison to the norm: 6.6 and 5 points, respectively. The mean difference between verbal and performance IQ was 0.5 points, p = 0.92. 

The authors point out some disadvantages of using WAIS-R in this group of patients:
lack of difference between verbal and performance intellect, probably caused by diffuse brain injury; old norms as a probable reason for absence of cognitive deficit in some patients, insufficient information about premorbid intelligence level (pre-surgery testing not possible). The authors recommend using a premorbid intelligence test in patients after neurosurgery interventions.

Key words:
subarrachnoid hemorrhagie – cerebral aneurysm – cognitive deficit – premorbid intellect


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Labels
Paediatric neurology Neurosurgery Neurology

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Czech and Slovak Neurology and Neurosurgery

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2012 Issue 2

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