Critical Management of Status Epilepticus
Main Article Content
Abstract
Seizure is clinical manifestation of sudden disruption of the normal electrical activity of cortical neurons. The brain electrical activity is periodically disturbed, alteration in neural cell integrity, increase in firing impulses and spread to adjacent normal neurons result in temporary brain dysfunction with alterations in consciousness, behavior or motor function. It may be triggered by illness, infection, stress, stroke, brain tumor, or the underlying cause may not completely understand. Status epilepticus (SE) is a medical emergency and requires prompt diagnosis and treatment. Treatment includes general support measures, drugs to suppress epileptic activity and relieving the underlying condition. Refractory SE requires admission to an intensive care unit (ICU) to allow adequate monitoring and support of respiratory, metabolic and hemodynamic functions and cerebral electrical activity. For SE treatment, benzodiazepines are the first line antiepileptic agents, and if benzodiazepines fail to control seizures, Phenytoin is usually indicated; Phenobarbital or Valproate may also be considered. For refractory SE, Propofol and Thiopental represent first line agents after careful assessment of potential risks. In refractory SE, general anesthesia may be required. There is currently no unique consensus for definite treatment option of RSE. In this review, the management protocol of seizure, assessment, monitoring, and different alternative therapy would be discussed.
Article Details
Copyright (c) 2017 Hashemian SM, et al.

This work is licensed under a Creative Commons Attribution 4.0 International License.
Behera MK, Rana KS, Kanitkar M, Adhikari KM. Status Epilepticus in Children. Med J Armed Forces India. 2005; 61: 174-178. Ref.: https://goo.gl/alP7Fp
Singhi S, Singhi P, Dass R. Status epilepticus: Emergency management. Indian J Pediatr. 2003; 70; 1: S1-22. Ref.: https://goo.gl/lIvnEc
Gulati S, Vasudevan A. Status epilepticus. In: Suraj Gupte, editor. Text Book of Pediatric Emergencies. New Delhi: Peepee Publishers and Distributors. 2004; 134-141.
Chin RF, Verhulst L, Neville BG, Peters MJ, Scott RC. Inappropriate emergency management of Status epilepticus in children contributes a need for intensive care. J Neurol Neurosurg Psychiatry. 2004; 75: 1584-1588. Ref.: https://goo.gl/1Qqz7U
Gratrix AP, Simon M Enright. Epilepsy in anaesthesia and intensive care. Contin Educ Anaesth Crit Care Pain. 2005; 5: 118-121. Ref.: https://goo.gl/6pLQch
Treiman DM, Meyers PD, Walton NY, Collins JF, Colling C, et al. A comparison of four treatments for generalized convulsive status epilepticus. Veterans Affairs Status Epilepticus Cooperative Study Group. N Engl J Med. 1998; 339: 792-798. Ref.: https://goo.gl/6qo4Ho
Abou Khaled KJ, Hirsch LJ. Updates in the management of seizures and status epilepticus in critically ill patients. Neurol Clin. 2008; 26: 385-408. Ref.: https://goo.gl/DBKrXc
Bhagat H, Dash HH. Anaesthesiologist’s role in the management of an epileptic patient. Indian J. Anaesth. 2006; 50: 20-26. Ref.: https://goo.gl/17uwFS
Treiman DM. Status epilepticus. In: Laidlaw J, Richens A, Chadwick D, editors: A textbook of epilepsy. New York, Churchill Livingstone 1993: 205.
Lowenstein DH, Alldredge BK. Status epilepticus. N Eng J Med. 1998; 338: 970-976. Ref.: https://goo.gl/gRA6bo
Treiman DM. Treatment of status epilepticus. In: Engel Jr J, Pedley TA editors: Epilepsy: A comprehensive textbook. Philadelphia: Lippincott-Raven. 1997; 1317-1323.
Shorvon S. Status Epilepticus: Its Clinical Features and Treatment in Children and Adults. Cambridge, England: Cambridge University Press. 1994; 201. Ref.: https://goo.gl/b73xeA
Claassen J, Hirsch LJ, Emerson RG, Mayer SA. Treatment of refractory status epilepticus with pentobarbital, propofol, midazolam: a systemic review. Epilepsia. 2002; 43: 146-153. Ref.: https://goo.gl/k4cnBr
Mayer SA, Claassen J, Lokin J, Mendesohn F, Dennis LJ, et al. Refractory status epilepticus: frequency, risk factors, and impact on outcome. Arch Neurol. 2002; 59: 205-210. Ref.: https://goo.gl/PwpVS6
Friedman D, Claassen J, Hirsch LJ. Continuous Electroencephalogram Monitoring in the Intensive Care Unit. Anesth Analg. 2009; 109: 506-523. Ref.: https://goo.gl/VTY7Es
Claassen J, Mayer SA, Kowalski RG, Emerson RG, Hirsch LJ. Detection of electrographic seizures with continuous EEG monitoring in critically ill patients. Neurology. 2004; 62: 1743-1748. Ref.: https://goo.gl/5SyQ4w
DeLorenzo RJ, Waterhouse EJ, Towne AR, Boggs JG, Ko D, et al. Persistent nonconvulsive status epilepticus after the control of convulsive status epilepticus. Epilepsia. 1998; 39: 833-840. Ref.: https://goo.gl/Jt4VnZ
Walker M, Cross H, Smith S, Young C, Aicardi J, et al. Nonconvulsive status epilepticus: Epilepsy Research Foundation workshop reports. Epileptic Disord. 2005; 7: 253-296. Ref.: https://goo.gl/cJh2AP
Patsalos PN, Fröscher W, Pisani F, van Rijn CM. The importance of drug interactions in epilepsy therapy. Epilepsia. 2002; 43: 365-385. Ref.: https://goo.gl/aDaerp
Velisek L, Nebieridze N, Chachua T, Veliskova J. Anti-seizure medications and estradiol for neuroprotection in epilepsy: the 2013 update. Recent Pat CNS Drug Discov. 2013; 8: 24-41. Ref.: https://goo.gl/mBfLfg
Finsterer J. Toxicity of Antiepileptic Drugs to Mitochondria. Handb Exp Pharmacol. 2016 Sep 3. Ref.: https://goo.gl/zYnUOz
Stephen LJ. Drug treatment of epilepsy in elderly people: focus on valproic Acid. Drugs Aging. 2003; 20: 141-152. Ref.: https://goo.gl/etP0Qm
Al-Quteimat OM. Phenytoin-induced toxic epidermal necrolysis: Review and recommendations. J Pharmacol Pharmacother. 2016; 7: 127-132. Ref.: https://goo.gl/PuuUXy
Leppik IE, Derivan AT, Homan RW, Walker J, Ramsay RE, et al. Double-blind study of lorazepam and diazepam in status epilepticus. JAMA. 1983; 249: 1452-1454. Ref.: https://goo.gl/jBM1rk
Alvarez V, Januel JM, Burnand B, Rossetti AO. Second-line status epilepticus treatment: comparison of phenytoin, valproate, and levetiracetam. Epilepsia. 2011; 52: 1292-1296. Ref.: https://goo.gl/73Vv09
Gilad R, Izkovitz N, Dabby R, Rapoport A, Sadeh M, et al. Treatment of status epilepticus and acute repetitive seizures with i.v. valproic acid vs phenytoin. Acta Neurol Scand. 2008; 118: 296-300. Ref.: https://goo.gl/z69fP4
Lawn ND, Wijdicks EFM. Status epilepticus: A critical review of management Options. Can J Neurol Sci. 2002; 7: 47-59. Ref.: https://goo.gl/znppHj
Alldredge BK, Gelb AM, Isaacs SM, Corry MD, Allen F, et al. A comparison of lorazepam, diazepam, and placebo for the treatment of out-of-hospital status epilepticus. N Engl J Med. 2001; 345: 631-637. Ref.: https://goo.gl/55M3QS
WE Dodson, RJ DeLorenzo, TA Pedley. Working Group on Status Epilepticus. Treatment of convulsive status epilepticus. Recommendations of the Epilepsy Foundation of America’s working group on status epilepticus. JAMA. 1993; 270: 854-859.
Osorio I, Reed RC. Treatment of refractory generalized tonic-clonic status epilepticus with pentobarbital anesthesia after high-dose phenytoin. Epilepsia. 1989; 30: 464-471. Ref.: https://goo.gl/iAGv7j
Lowenstein DH, Aminoff MJ, Simon RP. Barbiturate anesthesia in the treatment of status epilepticus: clinical experience with 14 patients. Neurology 1988; 38: 395-400. Ref.: https://goo.gl/NNAL1i
Yaffe K, Lowenstein DH. Prognostic factors of pentobarbital therapy for refractory generalized status epilepticus. Neurology. 1993; 43: 895-900. Ref.: https://goo.gl/IOyyGC
Shorvon S. Status epilepticus: its clinical features and treatment in children and adults. Cambridge, England: Cambridge University Press, 1994. Ref.: https://goo.gl/gnqT9X
Moudgill GC. Update on anaesthesia and the immune response. Can Anaesth Soc J. 1986; 33: S54-S60. Ref.: https://goo.gl/eoS62I
Kinoshita H, Nakagawa E, Iwasaki Y, Hanaoka S, Sugai K. Pentobarbital therapy for status epilepticus in children: timing of tapering. Pediatr Neurol. 1995; 13: 164-168. Ref.: https://goo.gl/tlMD1m
Sheth RD, Gidal BE. Refractory status epilepticus: response to ketamine. Neurology. 1998; 51: 1765-1766. Ref.: https://goo.gl/6Pa0Fq
Lifeinthefastlane.com http://lifeinthefastlane.com/2010/10/ebm-status-epilepticus/Status Epilepticus EBM Review October 31, 2010 By Mike Cadogan. Ref.: https://goo.gl/CNwIY5
Costello DJ, Cole AJ. Treatment of acute seizures and status epilepticus. J Intensive Care Med. 2007; 22: 319-47. Ref.: https://goo.gl/CpF2aE
Chapman MG, Smith M, Hirsch NP. Status epilepticus. Anaesthesia. 2001; 56: 648-659. Ref.: https://goo.gl/BIv50K
Treiman DM, Convulsive status epilepticus. Curr Treat Options Neurol. 1999; 1: 359-369. Ref.: https://goo.gl/euvGNh
Marik PE, Varon J. The Management of Status Epilepticus. Chest. 2004; 126: 582-591. Ref.: https://goo.gl/wcMrBW
Alldredge BK, Gelb AM, Isaacs SM, Corry MD, Allen F, et al. A comparison of lorazepam, diazepam, and placebo for the treatment of out-of-hospital status epilepticus. N Engl J Med. 2001; 345: 631-637. Ref.: https://goo.gl/HUhXa2
Lowenstein DH, Alldredge BK. Status epilepticus. N Engl J Med. 1998; 338: 970-976. Ref.: https://goo.gl/m83Obh
DeLorenzo RJ, Waterhouse EJ, Towne AR, Boggs JG, Ko D, et al. Persistent nonconvulsive status epilepticus after the control of convulsive status epilepticus. Epilepsia. 1998; 39: 833-840. Ref.: https://goo.gl/QMPAZ0
Towne AR, Waterhouse EJ, Boggs JG, Garnett LK, Brown AJ, et al. Prevalence of nonconvulsive status epilepticus in comatose patients. Neurology. 2000; 54: 340-345. Ref.: https://goo.gl/5qFVBG
Celesia G. Modern concepts of status epilepticus. JAMA. 1976; 235:1571-1574. Ref.: https://goo.gl/SsyGCi
Dunne JW, Summers QA, Stewart-Wynne EG. Non-convulsive status epilepticus: a prospective study in an adult general hospital. Q J Med. 1987; 62: 117-126. Ref.: https://goo.gl/eFYQGB
Rossetti AO, Reichhart MD, Schaller MD, Despland PA, Bogousslavsky J. Propofol Treatment of Refractory Status Epilepticus: A Study of 31 Episodes. Epilepsia. 2004; 45: 757-763. Ref.: https://goo.gl/nr5gxu
Mayer SA, Claassen J, Lokin J, Mendelsohn F, Dennis LJ, et al. Refractory status epilepticus: frequency, risk factors, and impact on outcome. Arch Neurol. 2002; 59: 205-210. Ref.: https://goo.gl/9OvWyo
Claassen J, Hirsch LJ, Emerson RG, Mayer SA. Treatment of refractory status epilepticus with pentobarbital, propofol, or midazolam: a systematic review. Epilepsia. 2002; 43: 146-153. Ref.: https://goo.gl/efFyzH
Smith I, White PF, Nathanson M, Gouldson R. Propofol: an update on its clinical use. Anesthesiology. 1994; 81: 1005-1043. Ref.: https://goo.gl/K3jOIX
Hara M, Kai Y, Ikemoto Y. Propofol activates GABAA receptor-chloride ionophore complex in dissociated hippocampal pyramidal neurons of the rat. Anesthesiology. 1993; 79: 781-788. Ref.: https://goo.gl/uc8vMM
Orser BA, Bertlik M, Wang LY, JF MacDonald. Inhibition by propofol (2,6 di-isopropylphenol) of the N-methyl-D-aspartate subtype of glutamate receptor in cultured hippocampal neurones. Br J Pharmacol. 1995; 116: 1761-1768. Ref.: https://goo.gl/adVxBm
Vasile B, Rasulo F, Candiani A, Latronico N. The pathophysiology of propofol infusion syndrome: a simple name for a complex syndrome. Intensive Care Med. 2003; 29: 1417-1425. Ref.: https://goo.gl/LZWe0l
Parke TJ, Stevens JE, Rice AS, CL Greenaway, RJ Bray, et al. Metabolic acidosis and fatal myocardial failure after propofol infusion in children: five case reports. BMJ. 1992; 305: 613-616. Ref.: https://goo.gl/8g46d6
Kang TM. Propofol infusion syndrome in critically ill patients. Ann Pharmacother. 2002; 36: 1453-1456. Ref.: https://goo.gl/xzz2oz
Shorvon S. The management of status epilepticus. J Neurol Neurosurg Psychiatry. 2001; 70: 22-27. Ref.: https://goo.gl/JJEYZe
Bassin S, Smith TL, Bleck TP. Clinical review: status epilepticus. Crit Care. 2002; 6: 137-142. Ref.: https://goo.gl/06dYCg
Coeytaux A, Jallon P, Galobardes B, Morabia A. Incidence of status epilepticus in French-speaking Switzerland (EPISTAR). Neurology. 2000; 55: 693-697. Ref.: https://goo.gl/siIOFp
Holtkamp M, Masuhr F, Harms L, K Einhaupl, H Meierkord, et al. The management of refractory generalised convulsive and complex partial status epilepticus in three European countries: a survey among epileptologists and critical care neurologists. J Neurol Neurosurg Psychiatry. 2003; 74: 1095-1099. Ref.: https://goo.gl/CqmT5l
Glauser T, Shinnar S, Gloss D, Alldredge B, Arya R, et at. 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; 16: 48-61. Ref.: https://goo.gl/W2kUUt
Szupera Z. [New antiepileptic drugs, and therapeutic considerations]. Ideggyogy Sz. 2011 Sep 30; 64(9-10):329-32.
Pulman J, Hutton JL, Marson AG. Tiagabine add-on for drug-resistant partial epilepsy. Cochrane Database Syst Rev. 2012; 5: CD001908. Ref.: https://goo.gl/6g1CHt
Stokes T, Shaw EJ, Juarez-Garcia A, Camosso-Stefinovic J, Baker R. Clinical Guidelines and Evidence Review for the Epilepsies: diagnosis and management in adults and children in primary and secondary care London: Royal College of General National Collaborating Centre for Primary Care. 2004.
Simmons LE, Riker RR, Prato BS, Fraser GL. Assessing sedation during intensive care unit mechanical ventilation with the Bispectral Index and the Sedation-Agitation Scale. Crit Care Med. 1999; 27: 1499-504. Ref.: https://goo.gl/UeIxDH
Prichep LS, Gugino LD, John ER, Chabot RJ, Howard B, et al. The Patient State Index as an indicator of the level of hypnosis under general anaesthesia. Br J Anaesth. 2004; 92: 393-399. Ref.: https://goo.gl/FbkbtR
Bauerle K, Greim CA, Schroth M, Geisselbrecht M, Kobler A, et al. Prediction of depth of sedation and anesthesia by the Narcotrend EEG monitor. Br J Anaesth. 2004; 92: 841-845. Ref.: https://goo.gl/xMhEfF
Roustan JP, Valette S, Aubas P, Rondouin G, Capdevila X. Can electroencephalographic analysis be used to determine sedation levels in critically ill patients? Anesth Analg. 2005; 101: 1141-1151. Ref.: https://goo.gl/7i6uFa
Trinka E, Höfler J, Leitinger M, Brigo F. Pharmacotherapy for Status Epilepticus. Drugs. 2015; 75: 1499-1521. Ref.: https://goo.gl/cwlhin
Shorvon S, Ferlisi M. The treatment of super-refractory status epilepticus: a critical review of available therapies and a clinical treatment protocol. Brain. 2011; 134: 2802-2818. Ref.: https://goo.gl/QyhDb9
Trinka E, Kälviäinen R. 25 years of advances in definition, classification and treatment of status epilepticus. Seizure. 2017; 44: 65-73. Ref.: https://goo.gl/IvJo7N
Fung EL, Fung BB; Subcommittee on the Consensus Statement of the Hong Kong Epilepsy Society. Review and update of the Hong Kong Epilepsy Guideline on status epilepticus. Hong Kong Med J. 2017; 23: 67-73. Ref.: https://goo.gl/8CPVHF
Engel J Jr. What can we do for people with drug-resistant epilepsy? The 2016 Wartenberg Lecture. Neurology. 2016; 87: 2483-2489 . Ref.: https://goo.gl/dDv0Ht
Logroscino G, Hesdorffer DC, Cascino G, Hauser WA, Coeytaux A, et al. Longterm mortality after a first episode of status epilepticus. Neurology. 2002; 58: 537-541. Ref.: https://goo.gl/qcGTFZ
Jordan KG. Nonconvulsive status epilepticus in acute brain injury. J Clin Neurophysiol. 1999; 16: 332-340. Ref.: https://goo.gl/cxjNA6
Young GB, Jordan KG, Doig GS. An assessment of nonconvulsive seizures in the intensive care unit using continuous EEG monitoring: an investigation of variables associated with mortality. Neurology. 1996; 47: 83-89. Ref.: https://goo.gl/0llLtY