Neha Sharma
»Anatomy and Functions 
»Aetiology 
»Clinico-anatomical localization 
»Diagnosis 
»Neurological evaluation 
»Treatment 
»Impairments
»Largest of all lobes 
»Myriad functions 
»Divided into 3 aspects 
˃Dorsolateral 
˃Medial 
˃Inferior orbital
»Precentral region : Primary motor area (4) 
»Premotor : SMA – Lateral & Medial (6) Broca’s area (44) 
»Frontal eye fields : (8) cortical & subcortical occulomotor associations 
»Prefrontal cortex: Heterogenous connections (limbic, temporal, parietal) 
»Sensory processing 
»Decision making 
»Impulse control 
»Motor & Visual Memory
»5 Axes (ILAE) 
»Axis 1 : Ictal phenomenology 
»Axis 2 : Seizure type 
»Axis 3 : Syndrome 
»Axis 4 : Aetiology 
»Axis 5 : Impairment
»Variety of seizure patterns 
»Lobar manifestations rather than disease per se 
»Proposed classifications on functional anatomy 
˃Central 
˃Premotor 
˃Prefrontal 
Dorsolateral and Medioventral in each 
»Postural & tonic motor activity – Posterior 
»Complex motor behaviours, autonomic & emotional 
manifestations - Prefrontal
»Tumours (1/3rd) 
˃Low grade gangliogiomas, low grade gliomas, epidermoid tumours 
»Birth defects/ CNS malformations 
»Vascular malformations 
˃Arteriovenous 
˃Cavernous angiomas 
»Head trauma 
»Encephalitis 
»Genetic 
˃Autosomal Dominant Nocturnal Frontal Lobe Epilepsy (ADNFLE) 
»Syndromes 
˃Benign Rolandic Epilepsy/BECTS 
˃Aqd. Epileptiform Opercular Syndrome
»Sudden onset 
»Brief 
»Sudden termination 
»During sleep 
»Clusters 
»Rapid 20 generalization 
»Minimal postictal confusion 
»Motor :Clonic, Asymmetric tonic posturing 
»Gestural automatisms 
»Adaptability
»Broca 
˃Loss of an area of brain -> loss of function of that area ( Neurologic deficit) 
»Jackson 
˃Loss of an area of brain -> emergence of new function suppressed by that part ( Release phenomenon) “ Functional Uncoupling”
»Rolandic (Central) Epilepsy 
»Characteristic “Jacksonian march” 
»Focal clonic seizures (contralateral) 
»Associated parietal postcentral (sensory) and frontal precentral (motor) “ reflex epilepsy” 
˃Triggers : cutaneous stimulation, movement 
˃Manifestations : motor , sensory 
»Related Startle seizures : Infantile hemiplegia 
»Rare : Epilepsia partialis continua
»B/L Proximal asymmetrical tonic posturing 
˃“Fencing posture” 
»Adversion of Head & Eyes 
»Speech arrest/ Vocalization : Palilalia 
»Facial symptoms 
»Infrequent 
˃Aura 
˃Secondary generalization
»Ventral & Dorsal patterns 
»Posterior spread – 2o generalisation 
»VENTRO-MEDIAL PREFRONTAL 
˃Complex partial seizures of frontal lobe origin 
˃Intense subjective behavioural agitation : facial, screaming 
˃Apparently purposeful gesticulation 
˃Autonomic signs
»DORSO-LATERAL PREFRONTAL 
˃Adversion of eyes preceding head version 
˃Directed , compulsive or semi-purposeful automatisms 
˃Complex motor patterns 
˃Vocalizations without emotive content 
˃Visual hallucinations 
˃Compulsive thinking 
˃Frontal absence
»Pavor nocturnus 
»Sleep Apnoea 
»Pseudo seizures 
»Temporal Lobe Epilepsy 
»Psychogenic movement disorders 
»Familial paroxysmal dystonic choreoathetosis 
»Paroxysmal kinesigenic choreoathetosis/ dyskinesia 
»Episodic ataxia type I
»Neuroimaging 
»Structural : MRI 
»Functional : Non – invasive – EEG 
˃VEEG 
˃High resolution scalp EEG – source localization 
»PET : FDG , Flumazenil 
»Invasive : SEEG
»Medications 
˃Oxcarbamazepine, Carbamezepine 
˃Phenytoin 
˃Levetiracetam 
˃Gabapentin 
»Surgical 
˃Lobectomy 
˃Multiple Sub - pial Resection 
˃Vagus nerve stimulation 
»Diet 
˃Ketogenic diet
»Intellectual Disability 
»Education, learning & cognitive function 
»Physical health 
»Mental & Emotional health 
»Driving & Transportation restricted 
»Employment 
»Pregnancy
»H. Gray.Gray’s Anatomy of the Human Body 1st Edn (1918) 
»Kliegman R. M. , Stanton B.F. , Geme J. W. S. , Schor N. F., Behrman R.E. Nelson Textbook of Pediatrics 19th Edn. (2012) 
»McGonigal A. , Chauvel P. Frontal lobe epilepsy : seizure semiology and presurgical evaluation Practical Neurology, 2004, 4, 260–273 
»Piña-Garza J. E. Fenichel’s Clinical Pediatric Neurology 7th edn. (2013) 
»Rudolph’s Pediatrics 20th edn 
»Brett E. M., Pediatric Neurology 3rd edn. (1997) 
»Forfar and Arnell’s Textbook of Pediatrics 6th Edn.
Frontal lobe epilepsy

Frontal lobe epilepsy

  • 1.
  • 2.
    »Anatomy and Functions »Aetiology »Clinico-anatomical localization »Diagnosis »Neurological evaluation »Treatment »Impairments
  • 3.
    »Largest of alllobes »Myriad functions »Divided into 3 aspects ˃Dorsolateral ˃Medial ˃Inferior orbital
  • 4.
    »Precentral region :Primary motor area (4) »Premotor : SMA – Lateral & Medial (6) Broca’s area (44) »Frontal eye fields : (8) cortical & subcortical occulomotor associations »Prefrontal cortex: Heterogenous connections (limbic, temporal, parietal) »Sensory processing »Decision making »Impulse control »Motor & Visual Memory
  • 7.
    »5 Axes (ILAE) »Axis 1 : Ictal phenomenology »Axis 2 : Seizure type »Axis 3 : Syndrome »Axis 4 : Aetiology »Axis 5 : Impairment
  • 8.
    »Variety of seizurepatterns »Lobar manifestations rather than disease per se »Proposed classifications on functional anatomy ˃Central ˃Premotor ˃Prefrontal Dorsolateral and Medioventral in each »Postural & tonic motor activity – Posterior »Complex motor behaviours, autonomic & emotional manifestations - Prefrontal
  • 9.
    »Tumours (1/3rd) ˃Lowgrade gangliogiomas, low grade gliomas, epidermoid tumours »Birth defects/ CNS malformations »Vascular malformations ˃Arteriovenous ˃Cavernous angiomas »Head trauma »Encephalitis »Genetic ˃Autosomal Dominant Nocturnal Frontal Lobe Epilepsy (ADNFLE) »Syndromes ˃Benign Rolandic Epilepsy/BECTS ˃Aqd. Epileptiform Opercular Syndrome
  • 10.
    »Sudden onset »Brief »Sudden termination »During sleep »Clusters »Rapid 20 generalization »Minimal postictal confusion »Motor :Clonic, Asymmetric tonic posturing »Gestural automatisms »Adaptability
  • 11.
    »Broca ˃Loss ofan area of brain -> loss of function of that area ( Neurologic deficit) »Jackson ˃Loss of an area of brain -> emergence of new function suppressed by that part ( Release phenomenon) “ Functional Uncoupling”
  • 14.
    »Rolandic (Central) Epilepsy »Characteristic “Jacksonian march” »Focal clonic seizures (contralateral) »Associated parietal postcentral (sensory) and frontal precentral (motor) “ reflex epilepsy” ˃Triggers : cutaneous stimulation, movement ˃Manifestations : motor , sensory »Related Startle seizures : Infantile hemiplegia »Rare : Epilepsia partialis continua
  • 15.
    »B/L Proximal asymmetricaltonic posturing ˃“Fencing posture” »Adversion of Head & Eyes »Speech arrest/ Vocalization : Palilalia »Facial symptoms »Infrequent ˃Aura ˃Secondary generalization
  • 17.
    »Ventral & Dorsalpatterns »Posterior spread – 2o generalisation »VENTRO-MEDIAL PREFRONTAL ˃Complex partial seizures of frontal lobe origin ˃Intense subjective behavioural agitation : facial, screaming ˃Apparently purposeful gesticulation ˃Autonomic signs
  • 18.
    »DORSO-LATERAL PREFRONTAL ˃Adversionof eyes preceding head version ˃Directed , compulsive or semi-purposeful automatisms ˃Complex motor patterns ˃Vocalizations without emotive content ˃Visual hallucinations ˃Compulsive thinking ˃Frontal absence
  • 20.
    »Pavor nocturnus »SleepApnoea »Pseudo seizures »Temporal Lobe Epilepsy »Psychogenic movement disorders »Familial paroxysmal dystonic choreoathetosis »Paroxysmal kinesigenic choreoathetosis/ dyskinesia »Episodic ataxia type I
  • 21.
    »Neuroimaging »Structural :MRI »Functional : Non – invasive – EEG ˃VEEG ˃High resolution scalp EEG – source localization »PET : FDG , Flumazenil »Invasive : SEEG
  • 26.
    »Medications ˃Oxcarbamazepine, Carbamezepine ˃Phenytoin ˃Levetiracetam ˃Gabapentin »Surgical ˃Lobectomy ˃Multiple Sub - pial Resection ˃Vagus nerve stimulation »Diet ˃Ketogenic diet
  • 27.
    »Intellectual Disability »Education,learning & cognitive function »Physical health »Mental & Emotional health »Driving & Transportation restricted »Employment »Pregnancy
  • 28.
    »H. Gray.Gray’s Anatomyof the Human Body 1st Edn (1918) »Kliegman R. M. , Stanton B.F. , Geme J. W. S. , Schor N. F., Behrman R.E. Nelson Textbook of Pediatrics 19th Edn. (2012) »McGonigal A. , Chauvel P. Frontal lobe epilepsy : seizure semiology and presurgical evaluation Practical Neurology, 2004, 4, 260–273 »Piña-Garza J. E. Fenichel’s Clinical Pediatric Neurology 7th edn. (2013) »Rudolph’s Pediatrics 20th edn »Brett E. M., Pediatric Neurology 3rd edn. (1997) »Forfar and Arnell’s Textbook of Pediatrics 6th Edn.