Review of non‐convulsive status epilepticus and an illustrative case history manifesting as delirium

Non‐convulsive status epilepticus can result in significant morbidity and mortality. The condition can be difficult to recognise, and can mimic delirium due to other underlying pathologies. There are several clinical subtypes, although these can be difficult to distinguish by their clinical features alone. Electroencephalogram is the key diagnostic tool to making the diagnosis, but this investigation is a limited resource in many institutions. In this review, we present a case of non‐convulsive status epilepticus, manifesting as delirium, and then proceed to a literature review on this important diagnosis.