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22 - Cognitive side-effects due to antiepileptic drug combinations and interactions

from Part IV - Drug interactions in specific patient populations and special conditions

Published online by Cambridge University Press:  07 September 2009

Albert P. Aldenkamp
Affiliation:
Department of Neurology, University Hospital of Maastricht, The Netherlands; Department of Behavioral Science, Epilepsy Centre Kempenhaeghe, Heeze, The Netherlands; University of Amsterdam, SCI Kohnstamm Research Institute, Amsterdam, The Netherlands
Mark de Krom
Affiliation:
Department of Neurology, University Hospital of Maastricht, The Netherlands
Irene Kotsopoulos
Affiliation:
Department of Neurology, University Hospital of Maastricht, The Netherlands
Jan Vermeulen
Affiliation:
Epilepsy centre SEIN, Heemstede, The Netherlands
Jerzy Majkowski
Affiliation:
Foundation of Epileptology, Warsaw
Blaise F. D. Bourgeois
Affiliation:
Harvard University, Massachusetts
Philip N. Patsalos
Affiliation:
Institute of Neurology, London
Richard H. Mattson
Affiliation:
Yale University, Connecticut
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Summary

Introduction

The possibility that cognitive impairment may develop as a consequence or aftermath of epilepsy was raised as early as 1885 when Gowers described ‘epileptic dementia’ as an effect of the pathological sequela of seizures. Nonetheless, the topic was not coupled to antiepileptic drug (AED) treatment until the 1970s.

It has now been established that AED treatment may be associated with a variety of side-effects (Aldenkamp, 1995, 1998; Vermeulen and Aldenkamp, 1995, 2001). Some effects appear immediately after the start of drug exposure, such as nystagmus, but are relatively benign because they show habituation (Kulig and Meinardi, 1977), or are reversible when they are dose dependent. Others may be of insidious onset, emerging only after extended periods of treatment (i.e. chronic side-effects). A multitude of such chronic side-effects have been documented (Reynolds, 1975), but the most frequently reported effects concern central nervous system (CNS) effects. This chapter reviews some of our knowledge about a specific subgroup of such CNS-related chronic side-effects of AED treatment, that is, cognitive side effects: the adverse effects of drug treatment on information-processing systems.

Such effects are considered to be much more moderate than for example, some of the idiosyncratic reactions to drugs and normally do not lead to discontinuation of drug treatment.

Type
Chapter
Information
Antiepileptic Drugs
Combination Therapy and Interactions
, pp. 403 - 418
Publisher: Cambridge University Press
Print publication year: 2005

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