Seizures induced by micturition: A rare form of reflex epilepsy

Area of Science:

• Neurology
• Epileptology
• Neurophysiology

Background:

• Reflex epilepsy is characterized by seizures triggered by specific stimuli.
• Micturition-induced seizures represent a rare subtype of reflex epilepsy.
• Accurate diagnosis and localization of the seizure focus are critical for effective management.

Purpose of the Study:

• To describe the clinical characteristics and diagnostic findings of micturition-induced seizures.
• To highlight the importance of video-electroencephalogram (EEG) monitoring in diagnosing this rare epilepsy.
• To identify the specific brain region involved in triggering these seizures.

Main Methods:

• Utilized video-electroencephalogram (EEG) monitoring in patients presenting with suspected reflex seizures.
• Analyzed seizure semiology and EEG patterns correlated with the act of micturition.
• Performed neuroimaging and ictal/interictal scalp EEG to localize the epileptogenic zone.

Main Results:

• Confirmed micturition-induced seizures as a distinct clinical entity within reflex epilepsies.
• Demonstrated the diagnostic utility of continuous video-EEG monitoring in capturing these infrequent events.
• Localized the symptomatogenic zone to the mesial fronto-parietal cortex in affected individuals.

Conclusions:

• Micturition-induced seizures are a rare but identifiable form of reflex epilepsy.
• Video-EEG monitoring is indispensable for the diagnosis and characterization of micturition-induced seizures.
• The mesial fronto-parietal cortex is implicated as the primary seizure-onset zone in this condition.