Epilepsy Resource Manual
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EPILEPSY and OTHER SEIZURE DISORDERS 273 Base of Rh
45077 Ropper: Adams and Victor’s Principles of Neurology, 8/E McGraw-Hill BATCH RIGHT top of rh CHAPTER 16 base of rh EPILEPSY AND OTHER cap height base of text SEIZURE DISORDERS In contemporary society, the frequency and importance of epilepsy logic disease that demands the employment of special diagnostic can hardly be overstated. From the epidemiologic studies of Hauser and therapeutic measures, as in the case of a brain tumor. and colleagues, one may extrapolate an incidence of approximately A more common and less grave circumstance is for a seizure 2 million individuals in the United States who are subject to epi- to be but one in an extensive series recurring over a long period of lepsy (i.e., chronically recurrent cerebral cortical seizures) and pre- time, with most of the attacks being more or less similar in type. dict about 44 new cases per 100,000 population occur each year. In this instance they may be the result of a burned-out lesion that These figures are exclusive of patients in whom convulsions com- originated in the past and remains as a scar. The original disease plicate febrile and other intercurrent illnesses or injuries. It has also may have passed unnoticed, or perhaps had occurred in utero, at been estimated that slightly less than 1 percent of persons in the birth, or in infancy, in parts of the brain inaccessible for exami- United States will have epilepsy by the age of 20 years (Hauser nation or too immature to manifest signs. It may have affected a and Annegers). -
The Art of Epilepsy Management
FOCAL EPILEPSY AND SEIZURE SEMIOLOGY Piradee Suwanpakdee, MD. Division of Neurology Department of Pediatrics Phramongkutklao Hospital OUTLINE • Focal onset seizure classification • The definition of semiology • How can we get the elements of semiology? Focal seizures • Originate within networks limited to one hemisphere • May be discretely localized or more widely distributed.… www.ilae.org What is the seizure semiology? • Seizure semiology is an expression of activation and disinhibition of cerebral areas • It thus provides some information what cerebral areas are “involved” during a seizure Symptomatogenic areas Left hemisphere lateral aspect Mesial aspect Symptomatogenic areas Left Insula How can we get the elements of seizure semiology? • The information on semiology comes from patient’s and witness’ history • Video EEG provides objective data on seizure semiology • Seizure classification aims to intellectually organise and summarise information about seizure semiology Notes • Atonic seizures and epileptic spasms would not have level of awareness specified • Pedalling grouped in hyperkinetic rather than automatisms (arbitrary) • Cognitive seizures • impaired language • other cognitive domains • positive features eg déjà vu, hallucinations, perceptual distortions • Emotional seizures: anxiety, fear, joy, etc Focal onset aware seizure • This term replaces simple partial seizure • A seizure that starts in one area of the brain and the person remains alert and able to interact is called a focal onset aware seizure. • These seizures are brief, lasting seconds to less than 2 minutes. Focal clonic seizure • Indicate involvement of contralateral primary motor cortex • Reliability is good Epilepsia partialis continua focal motor status involving a small portion of the sensorimotor cortex Focal Onset Impaired Awareness Seizures • A seizure that starts in one area of the brain and the person is not aware of their surroundings • Focal impaired awareness seizures typically last 1 to 2 minutes. -
Clinicians Using the Classification Will Identify a Seizure As Focal Or Generalized Onset If There Is About an 80% Confidence Level About the Type of Onset
GENERALIZED ONSET SEIZURES Generalized onset seizures are not characterized by level of awareness, because awareness is almost always impaired. Generalized tonic-clonic: Immediate loss of Generalized epileptic spasms: Brief seizures with awareness, with stiffening of all limbs (tonic phase), flexion at the trunk and flexion or extension of the followed by sustained rhythmic jerking of limbs and limbs. Video-EEG recording may be required to face (clonic phase). Duration is typically 1 to 3 minutes. determine focal versus generalized onset. The seizure may produce a cry at the start, falling, tongue biting, and incontinence. Generalized typical absence: Sudden onset when activity stops with a brief pause and staring, Generalized clonic: Rhythmical sustained jerking of sometimes with eye fluttering and head nodding or limbs and/or head with no tonic stiffening phase. other automatic behaviors. If it lasts for more than These seizures most often occur in young children. several seconds, awareness and memory are impaired. Recovery is immediate. The EEG during these seizures Generalized tonic: Stiffening of all limbs, without always shows generalized spike-waves. clonic jerking. Generalized atypical absence: Like typical absence Generalized myoclonic: Irregular, unsustained jerking seizures, but may have slower onset and recovery and of limbs, face, eyes, or eyelids. The jerking of more pronounced changes in tone. Atypical absence generalized myoclonus may not always be left-right seizures can be difficult to distinguish from focal synchronous, but it occurs on both sides. impaired awareness seizures, but absence seizures usually recover more quickly and the EEG patterns are Generalized myoclonic-tonic-clonic: This seizure is like different. -
Seizure Disorders
Seizure Disorders Author Anthony Murro, M.D. Medical College of Georgia Epilepsy Program Department of Neurology Medical College of Georgia Augusta, GA 30912 Contents · Seizure Definitions · Types of Seizures · Partial Seizures · Generalized Seizures · Automatisms · Post-ictal state · Evolution of seizure type · Provoked Seizures · Causes of provoked seizures · Causes of unprovoked seizures · Electroencephalogram · Neuroimaging · Epilepsy syndromes o Temporal lobe epilepsy: o Frontal lobe epilepsy: o Occipital lobe epilepsy: o West Syndrome o Lennox Gastaut Syndrome o Benign partial epilepsy syndromes o Childhood absence epilepsy o Juvenile myoclonic epilepsy (JME) o Simple Febrile Seizure o Complex Febrile Seizure o Neonatal seizures · Anticonvulsant therapy o When to start and stop anticonvulsant therapy o Principles of anticonvulsant therapy o Anticonvulsant side effects o Phenytoin o Carbamazepine o Phenobarbital o Valproate o Lamotrigine o ACTH/Corticosteroid o Oxcarbazepine o Zonisamide · Status Epilepticus · Drug Therapy for status epilepticus · Epilepsy Surgery · Counseling and patient education · Self assessment examination · Examination answers · References · Disclaimer · Permitted Use Statement Seizure Definitions · An epileptic seizure is a disorder of abnormal synchronous electrical brain activity. · A clinical seizure is a epileptic seizure with symptoms. · A subclinical seizure is a epileptic seizure without symptoms. · A non-epileptic seizure (pseudoseizure) is a disorder with symptoms similar to a epileptic seizure. However, a non-epileptic seizure is not caused by abnormal synchronous electrical brain activity. · A cryptogenic seizure is a seizure that occurs from an unknown cause. Older publications use idiopathic to describe a seizure of unknown etiology but the current ILAE guidelines discourage the use of idiopathic for describing a seizure of unknown etiology. · A symptomatic seizure is a seizure that occurs from a known or suspected brain insult known to increase the risk of developing epilepsy. -
Handbook of EEG INTERPRETATION This Page Intentionally Left Blank Handbook of EEG INTERPRETATION
Handbook of EEG INTERPRETATION This page intentionally left blank Handbook of EEG INTERPRETATION William O. Tatum, IV, DO Section Chief, Department of Neurology, Tampa General Hospital Clinical Professor, Department of Neurology, University of South Florida Tampa, Florida Aatif M. Husain, MD Associate Professor, Department of Medicine (Neurology), Duke University Medical Center Director, Neurodiagnostic Center, Veterans Affairs Medical Center Durham, North Carolina Selim R. Benbadis, MD Director, Comprehensive Epilepsy Program, Tampa General Hospital Professor, Departments of Neurology and Neurosurgery, University of South Florida Tampa, Florida Peter W. Kaplan, MB, FRCP Director, Epilepsy and EEG, Johns Hopkins Bayview Medical Center Professor, Department of Neurology, Johns Hopkins University School of Medicine Baltimore, Maryland Acquisitions Editor: R. Craig Percy Developmental Editor: Richard Johnson Cover Designer: Steve Pisano Indexer: Joann Woy Compositor: Patricia Wallenburg Printer: Victor Graphics Visit our website at www.demosmedpub.com © 2008 Demos Medical Publishing, LLC. All rights reserved. This book is pro- tected by copyright. No part of it may be reproduced, stored in a retrieval sys- tem, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Library of Congress Cataloging-in-Publication Data Handbook of EEG interpretation / William O. Tatum IV ... [et al.]. p. ; cm. Includes bibliographical references and index. ISBN-13: 978-1-933864-11-2 (pbk. : alk. paper) ISBN-10: 1-933864-11-7 (pbk. : alk. paper) 1. Electroencephalography—Handbooks, manuals, etc. I. Tatum, William O. [DNLM: 1. Electroencephalography—methods—Handbooks. WL 39 H23657 2007] RC386.6.E43H36 2007 616.8'047547—dc22 2007022376 Medicine is an ever-changing science undergoing continual development. -
Report of the ILAE Classification Core Group
Epilepsia, 47(9):1558–1568, 2006 Blackwell Publishing, Inc. C 2006 International League Against Epilepsy Special Article Report of the ILAE Classification Core Group Jerome Engel, Jr., Chair Reed Neurological Research Center, David Geffen School of Medicine at UCLA, Los Angeles, CA, U.S.A. Summary: A Core Group of the Task Force on Classification is to present a list of seizure types and syndromes to the ILAE and Terminology has evaluated the lists of epileptic seizure types Executive Committee for approval as testable working hypothe- and epilepsy syndromes approved by the General Assembly in ses, subject to verification, falsification, and revision. This re- Buenos Aires in 2001, and considered possible alternative sys- port represents completion of this work. If sufficient evidence tems of classification. No new classification has as yet been subsequently becomes available to disprove any hypothesis, the proposed. Because the 1981 classification of epileptic seizure seizure type or syndrome will be reevaluated and revised or dis- types, and the 1989 classification of epilepsy syndromes and carded, with Executive Committee approval. The recognition of epilepsies are generally accepted and workable, they will not specific seizure types and syndromes, as well as any change be discarded unless, and until, clearly better classifications have in classification of seizure types and syndromes, therefore, will been devised, although periodic modifications to the current clas- continue to be an ongoing dynamic process. A major purpose of sifications may be suggested. At this time, however, the Core this approach is to identify research necessary to clarify remain- Group has focused on establishing scientifically rigorous cri- ing issues of uncertainty, and to pave the way for new classifica- teria for identification of specific epileptic seizure types and tions. -
Epilepsy and Psychosis
Central Journal of Neurological Disorders & Stroke Review Article Special Issue on Epilepsy and Psychosis Epilepsy and Seizures *Corresponding author Daniel S Weisholtz* and Barbara A Dworetzky Destînâ Yalcin A, Department of Neurology, Ümraniye Department of Neurology, Brigham and Women’s Hospital, Harvard University, Boston Research and Training Hospital, Istanbul, Turkey, Massachusetts, USA Email: Submitted: 11 March 2014 Abstract Accepted: 08 April 2014 Psychosis is a significant comorbidity for a subset of patients with epilepsy, and Published: 14 April 2014 may appear in various contexts. Psychosis may be chronic or episodic. Chronic Interictal Copyright Psychosis (CIP) occurs in 2-10% of patients with epilepsy. CIP has been associated © 2014 Yalcin et al. most strongly with temporal lobe epilepsy. Episodic psychoses in epilepsy may be classified by their temporal relationship to seizures. Ictal psychosis refers to psychosis OPEN ACCESS that occurs as a symptom of seizure activity, and can be seen in some cases of non- convulsive status epilepticus. The nature of the psychotic symptoms generally depends Keywords on the localization of the seizure activity. Postictal Psychosis (PIP) may occur after • Epilepsy a cluster of complex partial or generalized seizures, and typically appears after • Psychosis a lucid interval of up to 72 hours following the immediate postictal state. Interictal • Hallucinations psychotic episodes (in which there is no definite temporal relationship with seizures) • Non-convulsive status epilepticus may be precipitated by the use of certain anticonvulsant drugs, particularly vigabatrin, • Forced normalization zonisamide, topiramate, and levetiracetam, and is linked in some cases to “forced normalization” of the EEG or cessation of seizures, a phenomenon known as alternate psychosis. -
Epilepsy E1 (1)
EPILEPSY E1 (1) Epilepsy Last updated: September 9, 2021 CLASSIFICATION ............................................................................................................................................ 3 FOUR‐DIMENSIONAL EPILEPSY CLASSIFICATION (LÜDERS 2019).................................................................. 3 Semiology ............................................................................................................................................... 3 Epileptogenic zone ................................................................................................................................. 4 Etiology .................................................................................................................................................. 5 ILAE (2017) ................................................................................................................................................ 5 SEMIOLOGY (CLINICAL MANIFESTATIONS) - DEFINITIONS ......................................................................... 5 SEIZURE TRIGGERING FACTORS .................................................................................................................... 5 MOTOR ........................................................................................................................................................ 6 Elementary Motor .................................................................................................................................. 6 Automatism ........................................................................................................................................... -
Epilepsy & My Child Toolkit
Epilepsy & My Child Toolkit A Resource for Parents with a Newly Diagnosed Child 136EMC Epilepsy & My Child Toolkit A Resource for Parents with a Newly Diagnosed Child “Obstacles are the things we see when we take our eyes off our goals.” -Zig Ziglar EPILEPSY & MY CHILD TOOLKIT • TABLE OF CONTENTS Introduction Purpose .............................................................................................................................................5 How to Use This Toolkit ....................................................................................................................5 About Epilepsy What is Epilepsy? ..............................................................................................................................7 What is a Seizure? .............................................................................................................................8 Myths & Facts ...................................................................................................................................8 How is Epilepsy Diagnosed? ............................................................................................................9 How is Epilepsy Treated? ..................................................................................................................10 Managing Epilepsy How Can You Help Manage Your Child’s Care? ...............................................................................13 What Should You Do if Your Child has a Seizure? ............................................................................14 -
Thalamic Stimulation Improves Postictal Cortical Arousal and Behavior
Research Articles: Behavioral/Cognitive Thalamic stimulation improves postictal cortical arousal and behavior https://doi.org/10.1523/JNEUROSCI.1370-20.2020 Cite as: J. Neurosci 2020; 10.1523/JNEUROSCI.1370-20.2020 Received: 31 May 2020 Revised: 9 August 2020 Accepted: 10 August 2020 This Early Release article has been peer-reviewed and accepted, but has not been through the composition and copyediting processes. The final version may differ slightly in style or formatting and will contain links to any extended data. Alerts: Sign up at www.jneurosci.org/alerts to receive customized email alerts when the fully formatted version of this article is published. Copyright © 2020 the authors 1 Thalamic stimulation improves postictal cortical arousal and behavior 2 Abbreviated title: Thalamic stimulation improves postictal arousal 3 Jingwen Xu1,6, Maria Milagros Galardi1, Brian Pok1, Kishan K. Patel1, Charlie W. Zhao1, John P. 4 Andrews1, Shobhit Singla1, Cian P. McCafferty1, Li Feng1, Eric. T. Musonza1, Adam. J. 5 Kundishora1,3, Abhijeet Gummadavelli1,3, Jason L. Gerrard3, Mark Laubach4, Nicholas D. 6 Schiff5, Hal Blumenfeld1,2,3 7 8 Departments of 1Neurology, 2Neuroscience, 3Neurosurgery, Yale University School of Medicine, 9 New Haven, CT, USA 10 4 Department of Biology, American University, Washington, DC, USA 11 5Department of Neurology, Weill-Cornell Medical College, New York, NY, USA 12 6Department of Neurology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 13 Jinan, Shandong, 250012, China 14 15 Correspondence to: Hal Blumenfeld, MD, PhD 16 Yale Depts. Neurology, Neuroscience, Neurosurgery 17 333 Cedar Street, New Haven, CT 06520-8018 18 Tel: 203 785-3865 Fax: 203 737-2538 19 Email: [email protected] 20 21 Key words: epilepsy, thalamus, deep brain stimulation (DBS), consciousness, generalized tonic- 22 clonic seizures, sleep 23 24 Number of pages: 39 25 Number of figures: 6, color figures: 2, tables: 0. -
Pediatric Seizures Disclosures Learning Objectives Definitions
1/15/2020 Disclosures Relevant Financial Relationship(s) None Pediatric Seizures Off Label Usage James Miles, MD None NDAFP Family Medicine Update January 22, 2020 1 2 Learning Objectives Definitions • Review the key concepts of pediatric seizures. • Seizure : clinical expression of abnormal, • Appreciate how to evaluate a child with spells excessive, synchronous discharges of neurons concerning for seizure. residing primarily in the cerebral cortex. • Highlight the different types of treatment of • Epilepsy : at least two unprovoked seizures pediatric seizures. occurring more than 24 hours apart. • Be able to identify some common pediatric • Provoked seizure : secondary cause such as seizure disorders. hyponatremia, hypocalcemia, high fever, toxic • Differentiate between seizures and nonepileptic exposure, intracranial bleeding, or bacterial spells. meningitis. 3 4 Epidemiology Seizure Semiology • 0.5-1% kids will experience at least one • Generalized seizures afebrile seizure by adolescence – Tonic/Tonic-Clonic • 3-5% kids at least one febrile seizure – Absence – 3-6% will develop epilepsy – Myoclonic • 3.6% experiencing at least one seizure in an • Focal seizures 80-year lifespan – Tonic/Tonic-Clonic • Risk of having a seizure is greatest in infancy – Temporal lobe and after age 60 – Secondary generalization • M>F, higher in lower socioeconomic groups 5 6 1 1/15/2020 Pediatric Etiology Adult Etiology • Genetic • Ischemic or hemorrhagic stroke • Structural: injury, neurodevelopment • Traumatic head injury and bleeds • Metabolic: fever, -
MRI Reveals New Epilepsy Surgery Candidates
14 Epilepsy C LINICAL N EUROLOGY N EWS • February 2007 MRI Reveals New Epilepsy Surgery Candidates BY MICHELE G. SULLIVAN spherectomy a difficult Mid-Atlantic Bureau decision for both physi- cian and parent. emispherectomy or cortical resection may cure At a recent meeting of catastrophic epilepsy even in a child with gener- the Child Neurology So- alized seizures, with MRI rather than EEG iden- ciety, Dr. Wyllie reported H YLLIE tifying surgical candidates, according to Dr. Elaine Wyl- some preliminary find- W lie, director of the child neurology center at the Cleveland ings from a retrospective Clinic Children’s Hospital. study of 50 such children, LAINE . E R Candidates for the surgery are children in whom the all of whom underwent D epileptogenic focus is a unilateral brain lesion that prob- functional hemispherec- ably occurred prenatally, perinatally, or during infancy. tomy or cortical resection “These extensive congenital or early-acquired unilateral at the Cleveland Clinic in brain lesions may produce generalized—or even con- 1999-2004. All had ictal or HOTOS COURTESY tralateral—maximum epileptiform discharge patterns on interictal epileptiform dis- P EEG,” she said in an interview. “Despite these EEG find- charges that were either Encephalomalacia from a perinatal infarction is shown on MRI (left); perioperative ings, you can still get favorable surgical results in some generalized or maximum interictal EEG in the same patient shows generalized slow spike-wave complexes (right). cases, if you have a clear unilateral brain lesion on MRI contralateral to the surgi- with side-appropriate semiology.” Children with this cal site, and early brain lesions that were unilateral or very ated from high school, and is now learning a trade.” clinical picture are typically turned away from surgery.