29th April 2024

A 25-year-old man has experienced several episodes in the past six months where he suddenly becomes unresponsive, stares blankly, and performs repetitive lip-smacking movements.

A 25-year-old man has experienced several episodes in the past six months where he suddenly becomes unresponsive, stares blankly, and performs repetitive lip-smacking movements. These episodes last around 1-2 minutes, after which he appears confused for a short period. He has no recollection of these events. His family history is notable for his father having a similar condition. An EEG shows spike-and-wave discharges.

Which is the most likely diagnosis?