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Related Experiment Video

Updated: Jun 2, 2026

Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
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Published on: December 18, 2016

Are prodromes preictal events? A prospective PDA-based study.

Thomas Maiwald1, Julie Blumberg, Jens Timmer

  • 1Freiburg Center for Data Analysis and Modeling, Freiburg University, Freiburg, Germany.

Epilepsy & Behavior : E&B
|April 26, 2011
PubMed
Summary

Many epilepsy patients report pre-seizure sensations, but this study found no predictive value. Objective assessment using personal digital assistants (PDAs) showed these "prodromes" did not reliably predict seizures.

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Preterm EEG: A Multimodal Neurophysiological Protocol
19:32

Preterm EEG: A Multimodal Neurophysiological Protocol

Published on: February 18, 2012

Area of Science:

  • Neurology
  • Epilepsy Research

Background:

  • Epilepsy patients often report pre-seizure sensations (prodromes) occurring over 30 minutes before a seizure.
  • The predictive accuracy of these subjective prodromal experiences remains unverified.

Purpose of the Study:

  • To objectively assess the sensitivity and specificity of subjective pre-seizure sensations (prodromes) in predicting epileptic seizures.
  • To evaluate the predictive performance of prodromes using a prospective methodology.

Main Methods:

  • Developed an objective methodology using personal digital assistants (PDAs) for prospective assessment of prodromes and seizures.
  • Recruited 11 epilepsy patients reporting prodromal symptoms for a 4-week study.
  • Recorded patient-entered times of prodromes and seizures internally within PDAs.

Main Results:

  • Of 9 patients providing data, most prodrome entries were not followed by seizures or were identified retrospectively.
  • Statistical analysis indicated no patient could predict seizures better than random chance.
  • Group performance in predicting seizures based on prodromes matched random prediction expectations.

Conclusions:

  • The predictive value and specificity of reported pre-seizure prodromes in epilepsy are questionable.
  • Objective, prospective assessment challenges the reliability of subjective prodromal experiences for seizure prediction.