Frontiers in Neurology (Dec 2017)

Lacosamide and Levetiracetam Have No Effect on Sharp-Wave Ripple Rate

  • Jan Kudlacek,
  • Jan Kudlacek,
  • Jan Chvojka,
  • Jan Chvojka,
  • Antonin Posusta,
  • Lubica Kovacova,
  • Seung Bong Hong,
  • Seung Bong Hong,
  • Shennan Weiss,
  • Kamila Volna,
  • Petr Marusic,
  • Jakub Otahal,
  • Premysl Jiruska

DOI
https://doi.org/10.3389/fneur.2017.00687
Journal volume & issue
Vol. 8

Abstract

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Pathological high-frequency oscillations are a novel marker used to improve the delineation of epileptogenic tissue and, hence, the outcome of epilepsy surgery. Their practical clinical utilization is curtailed by the inability to discriminate them from physiological oscillations due to frequency overlap. Although it is well documented that pathological HFOs are suppressed by antiepileptic drugs (AEDs), the effect of AEDs on normal HFOs is not well known. In this experimental study, we have explored whether physiological HFOs (sharp-wave ripples) of hippocampal origin respond to AED treatment. The results show that application of a single dose of levetiracetam or lacosamide does not reduce the rate of sharp-wave ripples. In addition, it seems that these new generation drugs do not negatively affect the cellular and network mechanisms involved in sharp-wave ripple generation, which may provide a plausible explanation for the absence of significant negative effects on cognitive functions of these drugs, particularly on memory.

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