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Status epilepticus (SE) is a clinical situation resulting from the failure of mechanisms that terminate seizures and/or the onset of mechanisms that abnormally prolong seizures [1]. It is referred to as refractory SE (RSE) if it continues despite parenteral administration of an adequate dose of a benzodiazepine and an antiseizure drug (ASD), and super-RSE (SRSE) if it continues 24 hours after the start of treatment with anaesthetics [2]. SE progresses to RSE in 23%-48% of patients, and to SRSE in 22% [3]; both situations are associated with high morbidity and mortality [4].