When do you consider ambulatory EEG to assess for future seizure risk in someone with seemingly resolved acute symptomatic seizures?

Generally, when I am unsure if the known events are truly symptomatic or whether they may represent more of a risk of recurrence without the "acute" etiology.

I really only use ambulatory EEGs for patients with frequent events. Otherwise, I use sleep-deprived EEGs in the typical setting for trying to diagnose epilepsy. This would be the case here. Do they have epilepsy or acute symptomatic seizures? Sleep deprivation obviously helps elicit epileptiform ab...