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Drop attacks and epileptic syndromes

K Fukushima1, T Fujiwara, K Yagi

  • 1National Epilepsy Center, Shizuoka Higashi Hospital, Japan.

The Japanese Journal of Psychiatry and Neurology
|June 1, 1993
PubMed
Summary
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Genuine drop attacks, characterized by myoclonic-tonic falls, occur in generalized epilepsies like Lennox-Gastaut syndrome, not partial epilepsy. These attacks often improve with age, impacting treatment decisions.

Area of Science:

  • Neurology
  • Epileptology

Background:

  • Drop attacks are a significant challenge in epilepsy management.
  • Previous classifications described four types of drop attacks.
  • The characteristics and specific epilepsy syndromes associated with genuine drop attacks require further elucidation.

Purpose of the Study:

  • To identify and characterize myoclonic-tonic type drop attacks.
  • To determine the epilepsy syndromes associated with genuine drop attacks.
  • To assess the natural course and potential treatment implications of drop attacks in Lennox-Gastaut syndrome.

Main Methods:

  • Clinical observation and classification of drop attack types.
  • Analysis of epilepsy types in patients experiencing genuine drop attacks.
  • Longitudinal assessment of drop attack frequency and severity in Lennox-Gastaut syndrome patients.

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Main Results:

  • Myoclonic-tonic drop attacks were identified as a type of genuine drop attack.
  • Genuine drop attacks were exclusively observed in generalized epilepsies, including Lennox-Gastaut syndrome, and absent in partial epilepsies.
  • Drop attacks in Lennox-Gastaut syndrome showed a tendency to decrease in frequency and severity with age, with two-thirds of patients experiencing improvement.

Conclusions:

  • Genuine drop attacks, particularly the myoclonic-tonic type, are characteristic of generalized epilepsies.
  • The natural improvement of drop attacks with age in Lennox-Gastaut syndrome is a crucial factor for considering epilepsy surgery.
  • Distinguishing genuine drop attacks from other fall types is important for accurate diagnosis and management strategies.