Emergency Management of Status Epilepticus

Status epilepticus is a neurological emergency defined by continuous or rapidly recurring seizures lasting longer than five minutes without recovery of consciousness. Prompt recognition and treatment are critical to minimise neuronal injury, systemic complications and mortality. Initial management emphasises rapid assessment of airway, breathing and circulation, followed by measurement of blood glucose and initiation of continuous electroencephalographic monitoring when feasible. First-line therapy consists of benzodiazepines, administered intravenously, intramuscularly or via buccal or intranasal routes if vascular access is delayed. If seizures persist beyond ten to twenty minutes, second-line antiseizure medications such as levetiracetam, valproate or phenytoin are introduced. Refractory status epilepticus, defined by failure to respond to first- and second-line agents, often requires anaesthetic induction with agents such as propofol or midazolam under intensive care supervision, with continuous EEG guidance to achieve burst-suppression or seizure suppression patterns. Non-convulsive forms may escape clinical detection, making EEG monitoring indispensable. Recent advances highlight the importance of tailored dosing based on weight and seizure subtype, streamlined escalation protocols to reduce treatment delays and integration of multidisciplinary care pathways. Global guidelines now emphasise early prehospital intervention, standardisation of drug sequencing and the potential role of ketogenic therapy or neuromodulation in super-refractory cases. Optimising registry data and harmonising practice standards remain priorities to guide future clinical trials and improve outcomes.

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Emergency Management of Status Epilepticus publication trend

The graph below shows the total number of articles in emergency management of status epilepticus across all publications each year (not limited to Nature Index journals).

Technical terms

Status epilepticus: A seizure or series of seizures lasting longer than five minutes without recovery of baseline consciousness.

Benzodiazepines: A class of sedative drugs used as first-line treatment to enhance inhibitory neurotransmission and terminate seizures.

Refractory status epilepticus: Seizures that do not respond to both first-line benzodiazepines and one second-line antiseizure medication.

Electroencephalography (EEG): Continuous recording of electrical brain activity, essential for diagnosis and monitoring of convulsive and non-convulsive status epilepticus.

Non-convulsive status epilepticus: A form of prolonged seizure activity on EEG without overt motor symptoms, often requiring specific monitoring to detect.

References

1. Sustained effort network for treatment of status epilepticus/European academy of neurology registry on adult refractory status epilepticus (SENSE-II/AROUSE). BMC Neurology (2024).
2. IGNITE Status Epilepticus Survey: A Nationwide Interrogation about the Current Management of Status Epilepticus in Germany. Journal of Clinical Medicine (2022).
3. National Variation in EMS Response and Antiepileptic Medication Administration for Children with Seizures in the Prehospital Setting. Western Journal of Emergency Medicine (2023).