Table 1 Variability in the definition of status epilepticus.

Authors	Definition
Epilepsy Foundation of America's Working Group4	Continuous seizure for >30 min or ⩾2 sequential seizures without full recovery of consciousness in between seizures
Bleck5	Seizures lasting, or often repeated without clinical recovery, for ⩾20 min
Veteran Administration Cooperative Trial on Treatment of Generalised Convulsive Status Epilepticus6	Seizure duration of 10 min
Pre‐Hospital Treatment of Status Epilepticus Study7	Seizure duration of 5 min
Lowenstein et al8	Continuous seizures lasting ⩾5 min or ⩾2 discrete seizures, with incomplete recovery of consciousness in between the episodes
Mayer et al9	Continuous tonic–clonic or electrographic seizure activity for at least 10 min or intermittent seizure activity without recovery of consciousness for at least 30 min