epilepsy classification

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Classification of epilepsy by seizure type and epilepsy syndrome and investigations to determine the cause of the epilepsy A NICE pathway brings together all NICE guidance, quality standards and materials to support implementation on a specific topic area. The pathways are interactive and designed to be used online. This pdf version gives you a single pathway diagram and uses numbering to link the boxes in the diagram to the associated recommendations. To view the online version of this pathway visit: http://pathways.nice.org.uk/pathways/epilepsy Pathway last updated: 05 March 2013 Copyright © NICE 2013. All rights reserved NICE Pathways Pathways

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  • Classification of epilepsy byseizure type and epilepsysyndrome and investigationsto determine the cause ofthe epilepsy

    A NICE pathway brings together all NICE guidance, qualitystandards and materials to support implementation on a specifictopic area. The pathways are interactive and designed to be usedonline. This pdf version gives you a single pathway diagram anduses numbering to link the boxes in the diagram to the associatedrecommendations.

    To view the online version of this pathway visit:

    http://pathways.nice.org.uk/pathways/epilepsy

    Pathway last updated: 05 March 2013Copyright NICE 2013. All rights reserved

    NICEPathwaysPathways

    http://pathways.nice.org.uk/http://pathways.nice.org.uk/http://pathways.nice.org.uk/http://www.nice.org.uk/

  • Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

    NICE Pathways

    Epilepsy pathwayCopyright NICE 2013. Pathway last updated: 05 March 2013

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  • 1 Child, young person or adult with epilepsy

    No additional information

    2 Classification of epilepsy by seizure type and epilepsy syndrome

    Determine the seizure type(s) and epilepsy syndrome, aetiology, and comorbidity, becausefailure to classify the epilepsy syndrome correctly can lead to inappropriate treatment andpersistence of seizures.

    Classify epileptic seizures and epilepsy syndromes using a multi-axial diagnostic scheme.Consider the following axes: description of seizure (ictal phenomenology); seizure type;syndrome and aetiology.

    Give children, young people and adults with epilepsy information about their seizure type(s) andepilepsy syndrome, and the likely prognosis.

    For information on using investigations such as an electroencephalogram (EEG) to help withclassification, see EEG in this pathway.

    3 Neuropsychological assessment

    Consider neuropsychological assessment in children, young people and adults in whom it isimportant to evaluate learning disabilities and cognitive dysfunction, particularly in regard tolanguage and memory.

    Referral for a neuropsychological assessment is indicated:

    when a child, young person or adult with epilepsy is having educational or occupationaldifficulties

    when an MRI (magnetic resonance imaging) has identified abnormalities in cognitivelyimportant brain regions (for more information on MRI, see MRI [See page 4] in thispathway)

    when a child, young person or adult complains of memory or other cognitive deficits and/orcognitive decline.

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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    Epilepsy pathwayCopyright NICE 2013. Pathway last updated: 05 March 2013

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    http://pathways.nice.org.uk/pathways/epilepsy/diagnosing-epilepsy-and-supporting-investigations#content=view-node%3Anodes-electroencephalogram-eeg

  • For special considerations when performing assessments in children, young people and adultswith learning disabilities and epilepsy, see children, young people and adults with learningdisabilities in this pathway.

    4 Investigations to determine cause of epilepsy or seizure

    No additional information

    5 Neuroimaging

    Use neuroimaging to identify structural abnormalities that cause certain epilepsies.

    Do not routinely request neuroimaging when a diagnosis of idiopathic generalised epilepsy hasbeen made.

    6 Magnetic resonance imaging (MRI)

    MRI is the imaging investigation of choice in children, young people and adults with epilepsy.

    MRI is particularly important in those:

    who develop epilepsy before the age of 2 years or in adulthood

    who have any suggestion of a focal onset on history, examination or electroencephalogram(EEG) (unless clear evidence of benign focal epilepsy; for more information on performingEEGs, see EEG in this pathway).

    in whom seizures continue in spite of first-line medication.

    For children, young people and adults who require an MRI, perform the test soon1.

    Quality standards

    The following quality statements are relevant to this part of the pathway.

    2. Investigations (children and young people)

    2. Investigations (adults)

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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    http://pathways.nice.org.uk/pathways/epilepsy/special-considerations-to-be-taken-when-managing-epilepsy-in-specific-groups-of-people#content=view-node%3Anodes-children-young-people-and-adults-with-learning-disabilitieshttp://pathways.nice.org.uk/pathways/epilepsy/special-considerations-to-be-taken-when-managing-epilepsy-in-specific-groups-of-people#content=view-node%3Anodes-children-young-people-and-adults-with-learning-disabilitieshttp://pathways.nice.org.uk/pathways/epilepsy/diagnosing-epilepsy-and-supporting-investigations#content=view-node%3Anodes-electroencephalogram-eeg

  • 1 The Guideline Development Group considered that 'soon' meant being seen within 4 weeks.

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  • 3. Magnetic resonance imaging (children and young people)

    3. Magnetic resonance imaging (adults)

    7 Computed tomography (CT)

    Use CT to identify underlying gross pathology if magnetic resonance imaging (MRI) is notavailable or is contraindicated, and for children or young people in whom a general anaestheticor sedation would be required for MRI but not CT.

    In an acute situation, use CT to determine whether a seizure has been caused by an acuteneurological lesion or illness.

    For more information on MRI, see MRI [See page 4] in this pathway.

    8 Blood tests and other investigations

    No additional information

    9 Blood tests and other investigations in children and young people

    In children and young people, other investigations, including blood and urine biochemistry,should be undertaken at the discretion of the specialist to exclude other diagnoses, and todetermine an underlying cause of the epilepsy.

    10 Blood tests in adults

    In adults, consider appropriate blood tests (for example, plasma electrolytes, glucose, calcium)to identify potential causes and/or to identify any significant comorbidity.

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • 11 A summary of where recommendations differ between children andyoung people and adults when classifying epilepsy and performinginvestigations to determine the cause of the epilepsy

    For differences in the recommendations between children and young people, and adults, in thispart of the pathway, see:

    Differences in recommendations for the use of neuroimaging when investigating the causeof epilepsy [See page 20]

    Differences in recommendations for the use of blood tests and other investigations wheninvestigating the cause of epilepsy [See page 20]

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • Licensing indications

    Detailed below are the anti-epileptic drugs (AEDs) that have been recommended in thispathway but that do not currently have licensed indications for these seizures types orsyndromes or particular populations.

    Seizure type/syndrome

    Drug Details of licensing

    Clobazam

    At the time of publication, clobazam did not have UKmarketing authorisation for use in children younger than 3years (BNFC). There was insufficient experience of theuse of this drug in children younger than 6 years toenable any dosage recommendation to be made (SPC).It did have authorisation for adjunctive therapy forepilepsy, monotherapy under specialist supervision forcatamenial (menstruation) seizures (usually for 710days each month, just before and during menstruation),and cluster seizures (BNFC).

    Eslicarbazepineacetate

    At the time of publication, eslicarbazepine acetate did nothave UK marketing authorisation for use in childrenyounger than 18 years. It was not recommended owing toa lack of data on safety and efficacy (SPC).

    Gabapentin

    At the time of publication, gabapentin did not have UKmarketing authorisation for use in children younger than 6years and at doses over 50 mg/kg daily in childrenyounger than 12 years (BNFC). The use of gabapentinwas not recommended in children younger than 6 yearsowing to the lack of sufficient supporting data (SPC).

    Treatment ofrefractory focalseizures

    PregabalinAt the time of publication, pregabalin did not have UKmarketing authorisation for use in children (BNF).

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • Pregabalin was not recommended for use in childrenyounger than 12 years and adolescents (1217 years)owing to insufficient data on safety and efficacy (SPC).

    Zonisamide

    At the time of publication, zonisamide did not have UKmarketing authorisation for use in children younger than18 years owing to insufficient data on safety and efficacy(SPC).

    Clobazam

    At the time of publication, clobazam did not have UKmarketing authorisation for use in children younger than 3years (BNFC). There was insufficient experience of theuse of this drug in children younger than 6 years toenable any dosage recommendation to be made (SPC).It did have authorisation for adjunctive therapy forepilepsy, monotherapy under specialist supervision forcatamenial (menstruation) seizures (usually for 710days each month, just before and during menstruation),and cluster seizures (BNFC).

    GTC

    Oxcarbazepine

    At the time of publication, oxcarbazepine did not have UKmarketing authorisation for GTC seizures (BNF). It hadauthorisation for focal seizures with or without secondaryGTC seizures (BNF).

    Absenceseizures

    Clobazam

    At the time of publication, clobazam did not have UKmarketing authorisation for use in children younger than 3years (BNFC). There was insufficient experience of theuse of this drug in children younger than 6 years toenable any dosage recommendation to be made (SPC).It did have authorisation for adjunctive therapy forepilepsy, monotherapy under specialist supervision forcatamenial (menstruation) seizures (usually for 710

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • days each month, just before and during menstruation),and cluster seizures (BNFC).

    Lamotrigine

    At the time of publication, lamotrigine had UK marketingauthorisation for monotherapy of typical absenceseizures for those aged 212 years only. There was notauthorisation outside of this age range (BNF).

    Levetiracetam

    At the time of publication, levetiracetam did not have UKmarketing authorisation for use in absence seizures. Ithad authorisation for monotherapy and adjunctivetreatment of focal seizures with or without secondarygeneralisation and adjunctive therapy of myoclonicseizures in patients with JME and GTC seizures (BNF).

    Topiramate

    At the time of publication, topiramate did not have UKmarketing authorisation for use in absence seizures. Ithad authorisation for monotherapy and adjunctivetreatment of focal seizures and GTC seizures andadjunctive treatment for seizures associated withLennoxGastaut syndrome (BNF).

    Zonisamide

    At the time of publication, zonisamide did not have UKmarketing authorisation for use in absence seizures. Ithad authorisation for adjunctive therapy for adult patientswith refractory focal seizures, with or without secondarygeneralisation (BNF).

    Myoclonicseizures

    Clobazam

    At the time of publication, clobazam did not have UKmarketing authorisation for use in children younger than 3years (BNFC). There was insufficient experience of theuse of this drug in children younger than 6 years toenable any dosage recommendation to be made (SPC).It did have authorisation for adjunctive therapy for

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  • epilepsy, monotherapy under specialist supervision forcatamenial (menstruation) seizures (usually for 710days each month, just before and during menstruation),and cluster seizures (BNFC).

    Levetiracetam

    At the time of publication, levetiracetam did not have UKmarketing authorisation for monotherapy use inmyoclonic seizures. It had authorisation for monotherapyand adjunctive treatment of focal seizures with or withoutsecondary generalisation and adjunctive therapy ofmyoclonic seizures in patients with JME and GTCseizures (BNF).

    Topiramate

    At the time of publication, topiramate did not have UKmarketing authorisation for use in myoclonic seizures. Ithad authorisation for monotherapy and adjunctivetreatment of focal seizures and GTC seizures andadjunctive treatment for seizures associated withLennoxGastaut syndrome (BNF).

    Zonisamide

    At the time of publication, zonisamide did not have UKmarketing authorisation for use in myoclonic seizures. Ithad authorisation for use in adjunctive treatment ofrefractory focal seizures with or without secondarygeneralisation (BNF).

    Tonic or atonicseizures

    Lamotrigine

    At the time of publication, lamotrigine did not have UKmarketing authorisation for use in tonic or atonicseizures. It had authorisation for monotherapy andadjunctive treatment of focal seizures, GTC seizures andseizures associated with LennoxGastaut syndrome. Italso had authorisation for monotherapy of typicalabsence seizures for children aged 212 years (BNF,BNFC).

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • Topiramate

    At the time of publication, topiramate did not have UKmarketing authorisation for use in tonic or atonicseizures. It had authorisation for monotherapy andadjunctive treatment of focal seizures and GTC seizuresand adjunctive treatment for seizures associated withLennoxGastaut syndrome (BNF).

    Infantile spasmsACTH(tetracosactide)

    At the time of publication, ACTH (tetracosactide) did nothave UK marketing authorisation for infantile spasms.Depot ampoules are not recommended in infants andchildren younger than 3 years owing to the presence ofbenzyl alcohol in the formulation (SPC).

    LennoxGastautsyndrome

    FelbamateAt the time of publication, felbamate did not have UKmarketing authorisation. There was no SPC available.

    Clobazam

    At the time of publication, clobazam did not have UKmarketing authorisation for use in children under 3 yearsof age (BNFC). There was insufficient experience of theuse of this drug in children younger than 6 years toenable any dosage recommendation to be made (SPC).It did have authorisation for adjunctive therapy forepilepsy, monotherapy under specialist supervision forcatamenial (menstruation) seizures (usually for 710days each month, just before and during menstruation),and cluster seizures (BNFC).

    Dravetsyndrome

    Topiramate

    At the time of publication, topiramate did not have UKmarketing authorisation for use in Dravet syndrome. Ithad authorisation for monotherapy and adjunctivetreatment of focal seizures and GTC seizures andadjunctive treatment for seizures associated withLennoxGastaut syndrome (BNF).

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • Carbamazepine

    At the time of publication, carbamazepine did not haveUK marketing authorisation for BECTS/Panayiotopoulossyndrome and late-onset childhood occipital epilepsy(Gastaut type). It had authorisation for focal and GTCseizures (BNF).

    Clobazam

    At the time of publication, clobazam did not have UKmarketing authorisation for use in children younger than 3years (BNFC). There was insufficient experience of theuse of this drug in children younger than 6 years toenable any dosage recommendation to be made (SPC).It did have authorisation for adjunctive therapy forepilepsy, monotherapy under specialist supervision forcatamenial (menstruation) seizures (usually for 710days each month, just before and during menstruation),and cluster seizures (BNFC).

    Eslicarbazepineacetate

    At the time of publication, eslicarbazepine acetate did nothave UK marketing authorisation for use in childrenyounger than 18 years. It was not recommended owing toa lack of data on safety and efficacy (SPC).

    BECTS/Panayiotopoulossyndrome andlate-onsetchildhoodoccipitalepilepsy(Gastaut type)

    Gabapentin

    At the time of publication, gabapentin did not have UKmarketing authorisation for BECTS/Panayiotopoulossyndrome and late-onset childhood occipital epilepsy(Gastaut type). It had authorisation for use in focalseizures with and without secondary generalisation (BNF)but it did not have UK marketing authorisation for use inchildren younger than 6 years and at doses over 50 mg/kg daily in children younger than 12 years (BNFC). Theuse of gabapentin was not recommended in childrenyounger than 6 years owing to the lack of sufficientsupporting data (SPC).

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • Lacosamide

    At the time of publication, lacosamide did not have UKmarketing authorisation for BECTS/Panayiotopoulossyndrome and late-onset childhood occipital epilepsy(Gastaut type). It had authorisation for adjunctivetreatment of focal seizures with or without secondarygeneralisation (BNF).

    Lamotrigine

    At the time of publication, lamotrigine did not have UKmarketing authorisation for BECTS/Panayiotopoulossyndrome and late-onset childhood occipital epilepsy(Gastaut type). It had authorisation for monotherapy andadjunctive treatment of focal and GTC seizures, seizuresassociated with LennoxGastaut syndrome, andmonotherapy treatment of typical absence seizures inchildren aged 2 to 12 years (BNF).

    Levetiracetam

    At the time of publication, levetiracetam did not have UKmarketing authorisation for BECTS/Panayiotopoulossyndrome and late-onset childhood occipital epilepsy(Gastaut type). It had authorisation for monotherapy andadjunctive treatment of focal seizures with or withoutsecondary generalisation and adjunctive therapy ofmyoclonic seizures in patients with JME and GTCseizures (BNFC).

    Oxcarbazepine

    At the time of publication, oxcarbazepine did not have UKmarketing authorisation for BECTS/Panayiotopoulossyndrome and late-onset childhood occipital epilepsy(Gastaut type). It had authorisation for focal seizures withor without secondary GTC seizures (BNF).

    PregabalinAt the time of publication, pregabalin did not have UKmarketing authorisation for use in children (BNF).Pregabalin was not recommended for use in children

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • younger than 12 years and adolescents (1217 years)owing to insufficient data on safety and efficacy (SPC).

    Tiagabine

    At the time of publication, tiagabine did not have UKmarketing authorisation for BECTS/Panayiotopoulossyndrome and late-onset childhood occipital epilepsy(Gastaut type). It had authorisation for focal seizures withor without secondary generalisation that are notsatisfactorily controlled by other antiepileptics (BNF).

    Topiramate

    At the time of publication, topiramate did not have UKmarketing authorisation for BECTS/Panayiotopoulossyndrome and late-onset childhood occipital epilepsy(Gastaut type). It had authorisation for monotherapy andadjunctive treatment of focal seizures and GTC seizuresand adjunctive treatment for seizures associated withLennox-Gastaut syndrome (BNF).

    Vigabatrin

    At the time of publication, vigabatrin did not have UKmarketing authorisation for BECTS/Panayiotopoulossyndrome. It can be prescribed in combination with otherepileptic treatment for focal epilepsy with or withoutsecondary generalisation (BNF).

    Zonisamide

    At the time of publication, zonisamide did not have UKmarketing authorisation for BECTS/Panayiotopoulossyndrome and late-onset childhood occipital epilepsy(Gastaut type). It had authorisation for adjunctive therapyfor adult patients with refractory focal seizures, with orwithout secondary generalisation (BNF).

    IGE ClobazamAt the time of publication, clobazam did not have UKmarketing authorisation for use in children younger than 3years (BNFC). There was insufficient experience of the

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • use of this drug in children younger than 6 years toenable any dosage recommendation to be made (SPC).It did have authorisation for adjunctive therapy forepilepsy, monotherapy under specialist supervision forcatamenial (menstruation) seizures (usually for 710days each month, just before and during menstruation),and cluster seizures (BNFC).

    Lamotrigine

    At the time of publication, lamotrigine did not have UKmarketing authorisation for use in IGE. It hadauthorisation for monotherapy and adjunctive treatmentof focal and GTC seizures, seizures associated withLennoxGastaut syndrome, and monotherapy treatmentof typical absence seizures in children aged 2 to 12 years(BNF).

    Levetiracetam

    At the time of publication, levetiracetam did not have UKmarketing authorisation for IGE. It had authorisation formonotherapy and adjunctive treatment of focal seizureswith or without secondary generalisation and adjunctivetherapy of myoclonic seizures in patients with JME andGTC seizures (BNF).

    Topiramate

    At the time of publication, topiramate did not have UKmarketing authorisation for use in IGE. It hadauthorisation for monotherapy and adjunctive treatmentof focal seizures and GTC seizures and adjunctivetreatment for seizures associated with LennoxGastautsyndrome (BNF).

    ZonisamideAt the time of publication, zonisamide did not have UKmarketing authorisation for use in IGE. It hadauthorisation for adjunctive therapy for adult patients with

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • refractory focal seizures, with or without secondarygeneralisation (BNF).

    Clobazam

    At the time of publication, clobazam did not have UKmarketing authorisation for use in children younger than 3years (BNFC). There was insufficient experience of theuse of this drug in children younger than 6 years toenable any dosage recommendation to be made (SPC).It did have authorisation for adjunctive therapy forepilepsy, monotherapy under specialist supervision forcatamenial (menstruation) seizures (usually for 710days each month, just before and during menstruation),and cluster seizures (BNFC).

    Lamotrigine

    At the time of publication, lamotrigine did not have UKmarketing authorisation for use in juvenile myoclonicepilepsy. It had authorisation for monotherapy andadjunctive treatment of focal and GTC seizures, seizuresassociated with LennoxGastaut syndrome, andmonotherapy treatment of typical absence seizures inchildren aged 2 to 12 years (BNF).

    Levetiracetam

    At the time of publication, levetiracetam did not have UKmarketing authorisation for monotherapy use in JME. Ithad authorisation for monotherapy and adjunctivetreatment of focal seizures with or without secondarygeneralisation and adjunctive therapy of myoclonicseizures in patients with JME and GTC seizures (BNF).

    JME

    Topiramate

    At the time of publication, topiramate did not have UKmarketing authorisation for use in JME. It hadauthorisation for monotherapy and adjunctive treatmentof focal seizures and GTC seizures and adjunctive

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • treatment for seizures associated with LennoxGastautsyndrome (BNF).

    Zonisamide

    At the time of publication, zonisamide did not have UKmarketing authorisation for use in JME. It hadauthorisation for adjunctive therapy for adult patients withrefractory focal seizures, with or without secondarygeneralisation (BNF).

    Clobazam

    At the time of publication, clobazam did not have UKmarketing authorisation for use in children younger than 3years (BNFC). There was insufficient experience of theuse of this drug in children younger than 6 years toenable any dosage recommendation to be made (SPC).It did have authorisation for adjunctive therapy forepilepsy, monotherapy under specialist supervision forcatamenial (menstruation) seizures (usually for 710days each month, just before and during menstruation),and cluster seizures (BNFC).

    Lamotrigine

    At the time of publication, lamotrigine had UK marketingauthorisation for monotherapy of typical absenceseizures for those aged 212 years only. There was noauthorisation outside this age range (BNF).

    Levetiracetam

    At the time of publication, levetiracetam did not have UKmarketing authorisation for use in absence syndromes. Ithad authorisation for monotherapy and adjunctivetreatment of focal seizures with or without secondarygeneralisation and adjunctive therapy of myoclonicseizures in patients with JME and GTC seizures (BNF).

    Absencesyndromes

    TopiramateAt the time of publication, topiramate did not have UKmarketing authorisation for use in absence syndromes. It

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  • had authorisation for monotherapy and adjunctivetreatment of focal seizures and GTC seizures andadjunctive treatment for seizures associated withLennoxGastaut syndrome (BNF).

    Zonisamide

    At the time of publication, zonisamide did not have UKmarketing authorisation for use in absence syndromes. Ithad authorisation for adjunctive therapy for adult patientswith refractory focal seizures, with or without secondarygeneralisation (BNF).

    Propofol

    At the time of publication, propofol did not have UKmarketing authorisation for status epilepticus but hadauthorisation for anaesthesia and sedation. Diprivan 2%,Propofol-Lipuro 2%, and Propoven 2% were not licensedfor use in children younger than 3 years; Diprofusor TCI('target controlled infusion') system was not licensed foruse in children (BNFC).

    Thiopentalsodium

    At the time of publication, thiopental sodium did not haveUK marketing authorisation for status epilepticus (only ifother measures fail, see section 4.8.2 in BNF), by slowintravenous injection (BNF). It is authorised for convulsivestates: 75 to 125 mg (3 to 5 ml of a 2.5% solution) givenby intravenous infusion (SPC).

    MidazolamAt the time of publication, midazolam injection did nothave UK marketing authorisation for status epilepticus(BNF, BNFC).

    Statusepilepticus

    Diazepam

    At the time of publication, diazepam did not have UKmarketing authorisation for the use of Rectubes andStesolid Rectal Tubes in children younger than 1 year(BNFC).

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

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  • Abbreviations: BECTS, benign epilepsy with centrotemporal spikes; BNF, British nationalformulary; BNFC, British national formulary for children; GTC, generalised tonicclonic; IGE,idiopathic generalised epilepsy; JME, juvenile myoclonic epilepsy; SPC, summary of productcharacteristics.

    Differences in recommendations for the use of neuroimaging wheninvestigating the cause of epilepsy

    Recommendations specific for children and young people

    Computed tomography (CT) should be used to identify underlying gross pathology if magneticresonance imaging (MRI) is not available or is contraindicated, and for children or youngpeople in whom a general anaesthetic or sedation would be required for MRI but not CT.

    Differences in recommendations for the use of blood tests and otherinvestigations when investigating the cause of epilepsy

    Recommendations specific for children and young people

    In children and young people, other investigations, including blood and urine biochemistry,should be undertaken at the discretion of the specialist to exclude other diagnoses, and todetermine an underlying cause of the epilepsy.

    Recommendations specific for adults

    In adults, appropriate blood tests (for example, plasma electrolytes, glucose, calcium) to identifypotential causes and/or to identify any significant comorbidity should be considered.

    Glossary

    Aetiology

    The cause or origin of a disease or disorder as determined by medical diagnosis.

    Adult

    Aged 18 years and older.

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  • Children

    Aged 28 days to 11 years.

    Comorbidity

    Co-existence of more than one disease or an additional disease (other than that being studiedor treated) in a person.

    Electroencephalogram

    (EEG) An investigation that involves recording the electrical activity of the brain. Electrodes areattached to standardised points on the person's head with collodion. Recordings are usuallytaken across two points.

    Epileptic seizure

    A transient occurrence of signs and/or symptoms, the result of a primary change to the electricalactivity (abnormally excessive or synchronous) in the brain.

    Epilepsy syndrome

    A distinctive disorder identifiable on the basis of a typical age of onset, seizure types, specificEEG characteristics, and often other features. Identification of epilepsy syndrome hasimplications for treatment, management and prognosis.

    Ictal phenomenology

    Description or history of ictal events (seizures).

    Idiopathic generalised epilepsy

    (IGE) A well-defined group of disorders characterised by typical absences, myoclonic andgeneralised tonicclonic seizures, alone or in varying combinations in otherwise normalindividuals. The EEG is also characteristic, demonstrating a distinct pattern of generalisedpolyspike wave discharges and/or generalised spike wave. Presumed to have a geneticaetiology. The new classification of the International League Against Epilepsy (ILAE, 2010)suggests the terminology should change to genetic generalised epilepsy (GGE).

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  • Prognosis

    A probable course or outcome of a disease. Prognostic factors are patient or diseasecharacteristics that influence the course of a disease. Good prognosis is associated with a lowrate of undesirable outcomes; poor prognosis is associated with a high rate of undesirableoutcomes.

    Specialist

    For children and young people: a paediatrician with training and expertise in epilepsy. Foradults: a medical practitioner with training and expertise in epilepsy.

    Young people

    Aged 12 to 17 years.

    Classification of epilepsy by seizure type and epilepsy syndrome andinvestigations to determine the cause of the epilepsy

    NICE Pathways

    Epilepsy pathwayCopyright NICE 2013. Pathway last updated: 05 March 2013

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  • Source guidance

    Epilepsy. NICE clinical guideline 137 (2012)

    Patient-centred care

    Patients and healthcare professionals have rights and responsibilities as set out in the NHSConstitution for England all NICE guidance is written to reflect these. Treatment and careshould take into account individual needs and preferences. People should have the opportunityto make informed decisions about their care and treatment, in partnership with their healthcareprofessionals. If someone does not have the capacity to make decisions, healthcareprofessionals should follow the Department of Health's advice on consent, the code of practicethat accompanies the Mental Capacity Act and the supplementary code of practice ondeprivation of liberty safeguards. In Wales, healthcare professionals should follow advice onconsent from the Welsh Government.

    If the person is under 16, healthcare professionals should follow the guidelines in Seekingconsent: working with children. If a young person is moving between paediatric and adultservices their care should be planned and managed according to the best practice guidancedescribed in the Department of Health's Transition: getting it right for young people.

    Your responsibility

    The guidance in this pathway represents the view of NICE, which was arrived at after carefulconsideration of the evidence available. Those working in the NHS, local authorities, the widerpublic, voluntary and community sectors and the private sector should take it into account whencarrying out their professional, managerial or voluntary duties. Implementation of this guidanceis the responsibility of local commissioners and/or providers. Commissioners and providers arereminded that it is their responsibility to implement the guidance, in their local context, in light oftheir duties to avoid unlawful discrimination and to have regard to promoting equality ofopportunity. Nothing in this guidance should be interpreted in a way which would be inconsistentwith compliance with those duties.

    Copyright

    Copyright National Institute for Health and Care Excellence 2013. All rights reserved. NICEcopyright material can be downloaded for private research and study, and may be reproduced

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    NICE Pathways

    Epilepsy pathwayCopyright NICE 2013. Pathway last updated: 05 March 2013

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    http://guidance.nice.org.uk/CG137http://www.dh.gov.uk/en/DH_132961http://www.dh.gov.uk/en/DH_132961http://www.dh.gov.uk/en/DH_103643http://www.justice.gov.uk/protecting-the-vulnerable/mental-capacity-acthttp://www.justice.gov.uk/protecting-the-vulnerable/mental-capacity-acthttp://www.dh.gov.uk/en/Publicationsandstatistics/Publications/PublicationsPolicyAndGuidance/DH_085476http://www.dh.gov.uk/en/Publicationsandstatistics/Publications/PublicationsPolicyAndGuidance/DH_085476http://www.wales.nhs.uk/consenthttp://www.wales.nhs.uk/consenthttp://www.dh.gov.uk/en/Publicationsandstatistics/Publications/PublicationsPolicyAndGuidance/DH_4007005http://www.dh.gov.uk/en/Publicationsandstatistics/Publications/PublicationsPolicyAndGuidance/DH_4007005http://www.dh.gov.uk/en/Publicationsandstatistics/Publications/PublicationsPolicyAndGuidance/DH_4132145

  • for educational and not-for-profit purposes. No reproduction by or for commercial organisations,or for commercial purposes, is allowed without the written permission of NICE.

    Contact NICE

    National Institute for Health and Care ExcellenceLevel 1A, City TowerPiccadilly PlazaManchesterM1 4BT

    www.nice.org.uk

    [email protected]

    0845 003 7781

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    NICE Pathways

    Epilepsy pathwayCopyright NICE 2013. Pathway last updated: 05 March 2013

    Page 24 of 24

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