Highlights & Basics
- Status epilepticus (SE) is a life-threatening neurologic condition defined as 5 or more minutes of either continuous seizure activity or repetitive seizures without regaining consciousness.
- Generalized convulsive SE in both its subtle and overt subtypes constitutes the most frequent variant.
- Diagnosis of nonconvulsive SE can be difficult, but recognition is crucial because rapid termination helps prevent serious brain injury, especially in patients with impaired consciousness.
- In most cases, treatment must precede any thorough investigation and must be initiated as soon as SE is suspected.
- Treatment involves a stepwise medication approach aimed at aborting the clinical and electrographic seizures.
Quick Reference
History & Exam
Key Factors
Other Factors
Diagnostics Tests
Treatment Options
Definition
Epidemiology
Etiology
Pathophysiology
Citations
Brophy GM, Bell R, Claassen J, et al; Neurocritical Care Society Status Epilepticus Guideline Writing Committee. Guidelines for the evaluation and management of status epilepticus. Neurocrit Care. 2012 Aug;17(1):3-23.[Abstract]
Glauser T, Shinnar S, Gloss D. Evidence-based guideline: treatment of convulsive status epilepticus in children and adults: report of the Guideline Committee of the American Epilepsy Society. Epilepsy Curr. 2016 Jan-Feb;16(1):48-61.[Abstract][Full Text]
National Institute for Health and Care Excellence (UK). Epilepsies in children, young people and adults. Apr 2022 [internet publication].[Full Text]
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2. Brophy GM, Bell R, Claassen J, et al; Neurocritical Care Society Status Epilepticus Guideline Writing Committee. Guidelines for the evaluation and management of status epilepticus. Neurocrit Care. 2012 Aug;17(1):3-23.[Abstract]
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34. Neligan A, Shorvon SD. Prognostic factors, morbidity and mortality in tonic-clonic status epilepticus: a review. Epilepsy Res. 2011 Jan;93(1):1-10.[Abstract]
35. Cascino GD. Generalized convulsive status epilepticus. Mayo Clin Proc. 1996 Aug;71(8):787-92.[Abstract]
36. Treiman DM. Treatment of convulsive status epilepticus. Int Rev Neurobiol. 2007 Sep 17;339(12):792-8.[Abstract]
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39. Wheless JW, Clarke DF, Arzimanoglou A, et al. Treatment of pediatric epilepsy: European expert opinion, 2007. Epileptic Disord. 2007 Dec;9(4):353-412.[Abstract]
40. Gaínza-Lein M, Sánchez Fernández I, Jackson M, et al. Association of time to treatment with short-term outcomes for pediatric patients with refractory convulsive status epilepticus. JAMA Neurol. 2018 Apr 1;75(4):410-8.[Abstract][Full Text]
41. Osorio I, Reed RC. Treatment of refractory generalized tonic-clonic status epilepticus with pentobarbital anesthesia after high-dose phenytoin. Epilepsia. 1989 Jul-Aug;30(4):464-71.[Abstract]
42. Kapur J, Elm J, Chamberlain JM, et al. Randomized trial of three anticonvulsant medications for status epilepticus. N Engl J Med. 2019 Nov 28;381(22):2103-13.[Abstract][Full Text]
43. Chamberlain JM, Kapur J, Shinnar S, et al. Efficacy of levetiracetam, fosphenytoin, and valproate for established status epilepticus by age group (ESETT): a double-blind, responsive-adaptive, randomised controlled trial. Lancet. 2020 Apr 11;395(10231):1217-24.[Abstract][Full Text]
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46. Trinka E, Höfler J, Leitinger M, et al. Pharmacotherapy for status epilepticus. Drugs. 2015 Sep;75(13):1499-521.[Abstract][Full Text]
47. Vasile B, Rasulo F, Candiani A, et al. The pathophysiology of propofol infusion syndrome: a simple name for a complex syndrome. Intensive Care Med. 2003 Sep;29(9):1417-25.[Abstract]
48. Parviainen I, Uusaro A, Kalviainen R, et al. High-dose thiopental in the treatment of refractory status epilepticus in intensive care unit. Neurology. 2002 Oct 22;59(8):1249-51.[Abstract]
49. Medicines and Healthcare products Regulatory Agency (UK). Drug safety update. Antiepileptic drugs in pregnancy: updated advice following comprehensive safety review. 7 January 2021 [internet publication].[Full Text]
50. Hernández-Díaz S, Smith CR, Shen A, et al. Comparative safety of antiepileptic drugs during pregnancy. Neurology. 2012 May 22;78(21):1692-9.[Abstract]
51. US Food and Drug Administration. Highlights of prescribing information. Feb 2021 [internet publication]. [Full Text]
52. American Epilepsy Society. Position statement on the use of valproate by women of childbearing potential. 8 June 2021 [internet publication].[Full Text]
53. Towne AR, Garnett LK, Waterhouse EJ, et al. The use of topiramate in refractory status epilepticus. Neurology. 2003 Jan 28;60(2):332-4.[Abstract]
54. Inokuchi R, Ohashi-Fukuda N, Nakamura K, et al. Comparison of intranasal and intravenous diazepam on status epilepticus in stroke patients: a retrospective cohort study. Medicine (Baltimore). 2015 Feb;94(7):e555.[Abstract][Full Text]
55. Pieribone VA, Tsai J, Soufflet C, et al. Clinical evaluation of ganaxolone in pediatric and adolescent patients with refractory epilepsy. Epilepsia. 2007 Oct;48(10):1870-4.[Abstract][Full Text]
56. Alkhachroum A, Der-Nigoghossian CA, Mathews E, et al. Ketamine to treat super-refractory status epilepticus. Neurology. 2020 Oct 20;95(16):e2286-94.[Abstract][Full Text]
57. Rosati A, De Masi S, Guerrini R. Ketamine for refractory status epilepticus: a systematic review. CNS Drugs. 2018 Nov;32(11):997-1009.[Abstract]
58. Thakur KT, Probasco JC, Hocker SE, et al. Ketogenic diet for adults in super-refractory status epilepticus. Neurology. 2014 Feb 25;82(8):665-70.[Abstract][Full Text]
59. Cervenka MC, Hocker S, Koenig M, et al. Phase I/II multicenter ketogenic diet study for adult superrefractory status epilepticus. Neurology. 2017 Mar 7;88(10):938-43.[Abstract][Full Text]
60. Appavu B, Vanatta L, Condie J, et al. Ketogenic diet treatment for pediatric super-refractory status epilepticus. Seizure. 2016 Oct;41:62-5.[Abstract][Full Text]
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63. Koubeissi M, Alshekhlee A. In-hospital mortality of generalized convulsive status epilepticus: a large US sample. Neurology. 2007 Aug 28;69(9):886-93.[Abstract]
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66. Migdady I, Rosenthal ES, Cock HR. Management of status epilepticus: a narrative review. Anaesthesia. 2022 Jan;77(suppl 1):78-91.[Abstract][Full Text]
67. Yaffe K, Lowenstein DH. Prognostic factors of pentobarbital therapy for refractory generalized status epilepticus. Neurology. 1993 May;43(5):895-900.[Abstract]
68. Jambaque I, Hertz-Pannier L, Mikaeloff Y, et al. Severe memory impairment in a child with bihippocampal injury after status epilepticus. Dev Med Child Neurol. 2006 Mar;48(3):223-6.[Abstract][Full Text]
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