Simple partial seizures rarely last more than which of the following?

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Simple partial seizures, or focal aware seizures, start in a small area of the brain and the person remains conscious. Because the electrical disturbance is limited in scope, the clinical spells tend to be brief and self-limited. In practice, most of these episodes wrap up within about a minute. If a simple partial seizure extends beyond one minute, it becomes an unusual presentation for this type and raises concern that the seizure activity may be persisting in the focal network or spreading, potentially leading to a secondarily generalized seizure. That’s why “more than 1 minute” is the duration most commonly recognized as the upper bound that is rarely exceeded for simple partial seizures.

Durations longer than a few seconds are not unusual, and many brief spells resolve well before a minute. Conversely, seizures lasting several minutes or more are not typical of a simple partial event and would prompt consideration of status epilepticus or evolution to a generalized seizure.