Pediatric EEGs 02

Topic: Physiology

Created on Thursday, March 1 2007 by jdmiles

Last modified on Thursday, March 1 2007.

 
        A) Episodes of mouth twitching, drooling and speech arrest on awakening at night
 
        B) Developmental delay
 
        C) Tremor
 
        D) Absence seizures
 
        E) Normal clinical history and exam
 

 

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This question was created on March 01, 2007 by jdmiles.
This question was last modified on March 01, 2007.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) episodes of mouth twitching, drooling and speech arrest on awakening at night

This answer is incorrect.

This EEG shows hypsarrhythmia, which is associated with West syndrome. Episodes of mouth twitching, drooling and speech arrest on awakening at night are more characteristic of BECTS (Benign childhood epilepsy with centrotemporal spikes).  (See References)

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B) developmental delay

This answer is correct.

This EEG shows hypsarrhythmia, a pattern of continuous, high-amplitude polymorphic, generalized slowing with no organized background, and multifocal spikes. Hypsarrhythmia is part of the triad of West syndrome. The other characteristic features of West syndrome are infantile spasms and developmental delay.  (See References)

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C) tremor

This answer is incorrect.

This EEG shows hypsarrhythmia, which is associated with West syndrome. Tremor is not a characteristic feature of West syndrome.  (See References)

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D) absence seizures

This answer is incorrect.

This EEG shows hypsarrhythmia, which is associated with West syndrome. Absence seizures are not a characteristic feature of West syndrome.  (See References)

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E) normal clinical history and exam

This answer is incorrect.

This EEG shows hypsarrhythmia, which is associated with West syndrome. This patient is not likely to have a normal clinical history and exam.  (See References)

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References:

1. Bendadis, S.R., and Wyllie, E. (2000). Pediatric epilepsy syndromes. In Levin, K.H., and Lüders, H.O. (Eds.) Comprehensive Clinical Neurophysiology. W.B. Saunders Company, Philadelphia. Pp. 468-480.

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physiology
Pediatric EEGs 02
Question ID: 030107085
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 03/01/2007
Modified: 03/01/2007
Estimated Permutations: 2400