VIGABatrin in Post-anoxic STATus Epilepticus - Phase IIa

Inclusion Criteria: * age ≥ 18 years * non-traumatic cardiac arrest (regardless of non-perfusing rhythm, etiology, or location of arrest) in whom the decision to treat unequivocal electrographic status epilepticus (as defined by the American Clinical Neurophysiology Society: having generalized spike/sharp-wave discharges ≥ 3Hz or any evolving pattern reaching \> 4Hz, lasting ≥ 10 minutes, or comprising \> 50% of any hour of recording) has been made * requiring anesthetic infusion for any reason * have reliable arterial access for frequent blood sampling * established enteral access within 48h of post-anoxic status epilepticus onset. Exclusion Criteria: * prior history of generalized epilepsy * history of gastrointestinal surgery within the last 21 days * pregnancy * status epilepticus onset preceding initiation of electroencephalography monitoring