Status Epilepticus

When a Seizure Becomes Status Epilepticus: Biology, Recognition, and the First Forty Minutes

Status epilepticus is a time-sensitive, phenotype-dependent emergency: treat sustained bilateral tonic–clonic activity at five minutes, give a full benzodiazepine dose and prepare durable antiseizure therapy in parallel, while continually revising the diagnosis. Thresholds are operational estimates rather than biologic cliffs, and cessation of visible convulsions does not prove electrographic termination.

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Refractory Status Epilepticus: Anesthetic Escalation, EEG Targets, and the First Wean

Refractory status epilepticus requires rapid phenotype-guided escalation, continuous EEG, adequate anesthetic loading, hemodynamic support, and a durable maintenance antiseizure regimen. Electrographic seizure cessation is the initial target for most patients; deeper burst suppression and treatment duration should be individualized because comparative evidence remains limited.

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Super-Refractory Status Epilepticus and NORSE/FIRES

Super-refractory status epilepticus requires more than progressively deeper anesthesia. Management must verify that the EEG target is truly ictal, build durable nonanesthetic seizure control, intensify the etiologic search, introduce phenotype-directed therapies when appropriate, preserve systemic physiology, and avoid premature prognostic closure.

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After the Seizures Stop: Delayed Awakening, Recovery, and Prognostic Restraint After Status Epilepticus

Seizure cessation does not equal recovery. Persistent encephalopathy may reflect ongoing seizures, medication effects, critical illness, underlying brain injury, or reversible peri-ictal changes, so prognosis should be updated from serial evidence rather than imposed by a predetermined awakening deadline.

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Joshua Lukas, MD (Instagram: @Neurointensivist)

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