A Young man with Peri-ictal water drinking.

Area of Science:

• Neurology
• Epileptology

Background:

• Neuro-vegetative features are associated with temporal lobe epilepsy (TLE).
• Peri-ictal water drinking (PIWD) is a rare ictal phenomenon in TLE.
• Establishing lateralization significance of PIWD is limited by case numbers.

Observation:

• A 31-year-old male with refractory TLE experienced PIWD episodes.
• Investigations including long-term video electroencephalogram (EEG), MRI, and neuropsychology indicated a lesion in the non-dominant temporal lobe.
• The patient underwent successful right anterior temporal lobectomy.

Findings:

• The case presents PIWD in the context of refractory TLE.
• The findings support a potential association between PIWD and non-dominant hemisphere epilepsy.

Implications:

• This case contributes to the limited literature on PIWD.
• Further research is needed to confirm the lateralizing significance of PIWD in TLE.
• Understanding PIWD may aid in localizing seizure foci in TLE.