Brain single photon emission computed tomography imaging in Landau-Kleffner syndrome

M. M. Guerreiro, E. E. Camargo, M. Kato, J. R. Menezes Netto, E. A. Silva, A. E. Scotoni, D. C. Silveira, C. A.M. Guerreiro

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

Five right-handed children with Landau-Kleffner syndrome (LKS) who had disease onset between the ages of 3 and 9 years were studied with EEG and single-photon emission computed tomography (SPECT) before and, in four cases, after 6 months of corticosteroid treatment. EEG findings included both focal and generalized spikes as well as spike-wave discharges with bilateral temporal predominance. These increased markedly during sleep in 1 child, and continuous spike-and-wave complexes appeared during slow-wave sleep in another patient. Neuropsychological testing demonstrated verbal auditory agnosia. Magnetic resonance imaging (MRI) was performed in 4 children and was normal. Brain SPECT imaging demonstrated abnormal perfusion in the left temporal lobe in all patients. The response to corticosteroid therapy was mixed. Our findings reinforce the concept that LKS is a functional disease affecting the language-dominant brain areas. We conclude that SPECT imaging may be of diagnostic assistance in the evaluation of this syndrome of unknown etiology.

Original languageEnglish (US)
Pages (from-to)60-67
Number of pages8
JournalEpilepsia
Volume37
Issue number1
DOIs
StatePublished - Jan 1996
Externally publishedYes

Keywords

  • Aphasia
  • Corticosteroids
  • Electroencephalography
  • Landau-Kleffner syndrome
  • Single photon emission computed tomography imaging
  • Verbal auditory agnosia

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

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