Identical Morphology of the Rolandic Spike‐and‐Wave Complex in Different Clinical Entities

  • van der Meij W
  • Wieneke G
  • van Huffelen A
 et al. 
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Abstract

The morphology of the rolandic spike, the trough between the rolandic
spike and the following slow wave, and of the slow wave itself was
quantitatively studied in 43 children, classified into five clinical
groups: (a) functional with epilepsy benign focal epilepsy of childhood
with centrotemporal spikes (BECT) with oropharyngeal seizures or
(b) BECT with unilateral or generalized seizures or (c) functional
without epilepsy, and (d) organic with or (e) without epilepsy. The
morphologic features of the rolandic spike-and-wave complex were
identical in the five clinical categories. Thus, a quantitative description
of the rolandic spike-and-wave complex can be given that is valid
for the 43 children of the present study, although they represent
a heterogeneity of associated clinical syndromes. The rolandic spike
appeared to be not a spike but a sharp wave with a mean duration
of 88 ms. In contrast to the opinion of several investigators, the
morphology of the rolandic spike does not provide a clue to its "epileptogenicity"
or to the presence or absence of an organic cerebral lesion in the
individual child. In clinical practice, additional information (background
activity of the EEG, computed tomography (CT) scan, or magnetic resonance
imaging (MRI) of the brain) is needed to determine the significance
of rolandic spikes occurring in the EEG of a child with respect to
the probability of a cerebral lesion and the prognosis in relation
to epileptic seizures.

Author-supplied keywords

  • Children
  • Electroencephalography
  • Epilepsy
  • Seizures
  • Spike‐and‐wave complex

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Authors

  • W. van der Meij

  • G. H. Wieneke

  • A. C. van Huffelen

  • A. J.F. Schenk‐Rootlieb

  • J. Willemse

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