Provocative and inhibitory effects of a video‐EEG neuropsychologic protocol in juvenile myoclonic epilepsy

Summary Purpose:  Studies suggest that higher cognitive functions could precipitate seizures in juvenile myoclonic epilepsy (JME). The present study aimed to analyze the effects of higher mental activity on epileptiform discharges and seizures in patients with JME and compare them to those of habitu...

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Veröffentlicht in:Epilepsia (Copenhagen) 2009-11, Vol.50 (11), p.2446-2455
Hauptverfasser: Guaranha, Mirian Salvadori Bittar, Da Silva Sousa, Patrícia, De Araújo‐Filho, Gerardo Maria, Lin, Katia, Guilhoto, Laura Maria Figueiredo Ferreira, Caboclo, Luís Otávio Sales Ferreira, Yacubian, Elza Márcia Targas
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container_issue 11
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container_title Epilepsia (Copenhagen)
container_volume 50
creator Guaranha, Mirian Salvadori Bittar
Da Silva Sousa, Patrícia
De Araújo‐Filho, Gerardo Maria
Lin, Katia
Guilhoto, Laura Maria Figueiredo Ferreira
Caboclo, Luís Otávio Sales Ferreira
Yacubian, Elza Márcia Targas
description Summary Purpose:  Studies suggest that higher cognitive functions could precipitate seizures in juvenile myoclonic epilepsy (JME). The present study aimed to analyze the effects of higher mental activity on epileptiform discharges and seizures in patients with JME and compare them to those of habitual methods of activation. Methods:  Seventy‐six patients with JME (41 female) underwent a video‐EEG (electroencephalography) neuropsychologic protocol (VNPP) and habitual methods of activation for 4–6 h. Results:  Twenty‐nine of the 76 (38.2%) presented provocative effect, and inhibition was seen in 28 of 31 (90.3%). A mixed effect was observed in 11 (35.5%), and 30 patients (39.5%) suffered no effect of VNPP. Action‐programming tasks were more effective than thinking in provoking epileptiform discharges (23.7% and 11.0% of patients, respectively, p = 0.03). Inhibitory effect was observed equally in the various categories of tasks, except in mental calculation, which had a higher inhibitory rate. Habitual methods of activation were more effective than VNPP in provoking discharges. Anxiety disorders were diagnosed in 24 of 58 patients (41.4%); anxious patients had greater discharge indexes and no significant inhibitory effect on VNPP. Discussion:  Praxis exerted the most remarkable provocative effect, in accordance with the motor circuitry hyperexcitability hypothesis in JME. Inhibitory effect, which had no such task specificity, might be mediated by a widespread cortical–thalamic pathway, possibly involving the parietal cortex. The frequent inhibitory effect found under cortical activation conditions, influenced by the presence of anxiety, supports nonpharmacologic therapeutic interventions in JME.
doi_str_mv 10.1111/j.1528-1167.2009.02126.x
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The present study aimed to analyze the effects of higher mental activity on epileptiform discharges and seizures in patients with JME and compare them to those of habitual methods of activation. Methods:  Seventy‐six patients with JME (41 female) underwent a video‐EEG (electroencephalography) neuropsychologic protocol (VNPP) and habitual methods of activation for 4–6 h. Results:  Twenty‐nine of the 76 (38.2%) presented provocative effect, and inhibition was seen in 28 of 31 (90.3%). A mixed effect was observed in 11 (35.5%), and 30 patients (39.5%) suffered no effect of VNPP. Action‐programming tasks were more effective than thinking in provoking epileptiform discharges (23.7% and 11.0% of patients, respectively, p = 0.03). Inhibitory effect was observed equally in the various categories of tasks, except in mental calculation, which had a higher inhibitory rate. Habitual methods of activation were more effective than VNPP in provoking discharges. Anxiety disorders were diagnosed in 24 of 58 patients (41.4%); anxious patients had greater discharge indexes and no significant inhibitory effect on VNPP. Discussion:  Praxis exerted the most remarkable provocative effect, in accordance with the motor circuitry hyperexcitability hypothesis in JME. Inhibitory effect, which had no such task specificity, might be mediated by a widespread cortical–thalamic pathway, possibly involving the parietal cortex. 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Cerebral palsy ; Higher Nervous Activity - physiology ; Humans ; Idiopathic generalized epilepsy ; Male ; Medical sciences ; Middle Aged ; Myoclonic Epilepsy, Juvenile - diagnosis ; Myoclonic Epilepsy, Juvenile - drug therapy ; Myoclonic Epilepsy, Juvenile - physiopathology ; Nervous system (semeiology, syndromes) ; Neural Inhibition - physiology ; Neural Pathways - physiopathology ; Neurology ; Neuropharmacology ; Neuropsychology ; Parietal Lobe - physiopathology ; Pharmacology. 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The present study aimed to analyze the effects of higher mental activity on epileptiform discharges and seizures in patients with JME and compare them to those of habitual methods of activation. Methods:  Seventy‐six patients with JME (41 female) underwent a video‐EEG (electroencephalography) neuropsychologic protocol (VNPP) and habitual methods of activation for 4–6 h. Results:  Twenty‐nine of the 76 (38.2%) presented provocative effect, and inhibition was seen in 28 of 31 (90.3%). A mixed effect was observed in 11 (35.5%), and 30 patients (39.5%) suffered no effect of VNPP. Action‐programming tasks were more effective than thinking in provoking epileptiform discharges (23.7% and 11.0% of patients, respectively, p = 0.03). Inhibitory effect was observed equally in the various categories of tasks, except in mental calculation, which had a higher inhibitory rate. Habitual methods of activation were more effective than VNPP in provoking discharges. Anxiety disorders were diagnosed in 24 of 58 patients (41.4%); anxious patients had greater discharge indexes and no significant inhibitory effect on VNPP. Discussion:  Praxis exerted the most remarkable provocative effect, in accordance with the motor circuitry hyperexcitability hypothesis in JME. Inhibitory effect, which had no such task specificity, might be mediated by a widespread cortical–thalamic pathway, possibly involving the parietal cortex. The frequent inhibitory effect found under cortical activation conditions, influenced by the presence of anxiety, supports nonpharmacologic therapeutic interventions in JME.</description><subject>Activation methods</subject><subject>Adolescent</subject><subject>Adult</subject><subject>Anticonvulsants. Antiepileptics. 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Cerebral palsy</subject><subject>Higher Nervous Activity - physiology</subject><subject>Humans</subject><subject>Idiopathic generalized epilepsy</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Myoclonic Epilepsy, Juvenile - diagnosis</subject><subject>Myoclonic Epilepsy, Juvenile - drug therapy</subject><subject>Myoclonic Epilepsy, Juvenile - physiopathology</subject><subject>Nervous system (semeiology, syndromes)</subject><subject>Neural Inhibition - physiology</subject><subject>Neural Pathways - physiopathology</subject><subject>Neurology</subject><subject>Neuropharmacology</subject><subject>Neuropsychology</subject><subject>Parietal Lobe - physiopathology</subject><subject>Pharmacology. Drug treatments</subject><subject>Photic Stimulation</subject><subject>Precipitant factors</subject><subject>Precipitating Factors</subject><subject>Reflex epilepsy</subject><subject>Task Performance and Analysis</subject><subject>Thalamus - physiopathology</subject><subject>Videotape Recording</subject><issn>0013-9580</issn><issn>1528-1167</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkcFu3CAQhlHVqtmkfYWKS3qzw4AN9qGHKNomkSIlh_aMWAwNK9Zswd6sb32EPmOfJDi7So8tF0Dzzcyv_0cIAykhn4t1CTVtCgAuSkpIWxIKlJf7N2jxWniLFoQAK9q6ISfoNKU1IURwwd6jE2irmgmoFsg_xLALWg1uZ7DqO-z6R7dyQ4gTNtYaPSQcLFZ45zoT_vz6vVxe496MMWzTpB-DDz-cxtsYhqCDz914Pe5M77zBmyloH_pcNtv8z_wH9M4qn8zH432Gvn9dfru6Ke7ur2-vLu8KXYmGFw1oqsG2FWOiq21Va9KKCqoVIy2pVcOosUAp4wCNAKOUYnXHFLfAuxVjlp2hz4e5WdfP0aRBblzSxnvVmzAmyTlnLSfsnyAFEPOiDDYHUMeQUjRWbqPbqDhJIHKORK7l7LycnZdzJPIlErnPrZ-OO8bVxnR_G48ZZOD8CKiklbdR9dqlV45S0jIQs9gvB-4puzn9twC5fLidX-wZeXGonA</recordid><startdate>200911</startdate><enddate>200911</enddate><creator>Guaranha, Mirian Salvadori Bittar</creator><creator>Da Silva Sousa, Patrícia</creator><creator>De Araújo‐Filho, Gerardo Maria</creator><creator>Lin, Katia</creator><creator>Guilhoto, Laura Maria Figueiredo Ferreira</creator><creator>Caboclo, Luís Otávio Sales Ferreira</creator><creator>Yacubian, Elza Márcia Targas</creator><general>Blackwell Publishing Ltd</general><general>Wiley-Blackwell</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TK</scope><scope>7X8</scope></search><sort><creationdate>200911</creationdate><title>Provocative and inhibitory effects of a video‐EEG neuropsychologic protocol in juvenile myoclonic epilepsy</title><author>Guaranha, Mirian Salvadori Bittar ; Da Silva Sousa, Patrícia ; De Araújo‐Filho, Gerardo Maria ; Lin, Katia ; Guilhoto, Laura Maria Figueiredo Ferreira ; Caboclo, Luís Otávio Sales Ferreira ; Yacubian, Elza Márcia Targas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4786-81c2c1f94337d5f45c097414b30905a832ef1223611871eaaa35d3a6f16db33f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Activation methods</topic><topic>Adolescent</topic><topic>Adult</topic><topic>Anticonvulsants. Antiepileptics. Antiparkinson agents</topic><topic>Biological and medical sciences</topic><topic>Cerebral Cortex - physiopathology</topic><topic>Child</topic><topic>Electroencephalography - methods</topic><topic>Electroencephalography - statistics &amp; numerical data</topic><topic>Epilepsy, Reflex - physiopathology</topic><topic>Female</topic><topic>Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy</topic><topic>Higher Nervous Activity - physiology</topic><topic>Humans</topic><topic>Idiopathic generalized epilepsy</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Myoclonic Epilepsy, Juvenile - diagnosis</topic><topic>Myoclonic Epilepsy, Juvenile - drug therapy</topic><topic>Myoclonic Epilepsy, Juvenile - physiopathology</topic><topic>Nervous system (semeiology, syndromes)</topic><topic>Neural Inhibition - physiology</topic><topic>Neural Pathways - physiopathology</topic><topic>Neurology</topic><topic>Neuropharmacology</topic><topic>Neuropsychology</topic><topic>Parietal Lobe - physiopathology</topic><topic>Pharmacology. Drug treatments</topic><topic>Photic Stimulation</topic><topic>Precipitant factors</topic><topic>Precipitating Factors</topic><topic>Reflex epilepsy</topic><topic>Task Performance and Analysis</topic><topic>Thalamus - physiopathology</topic><topic>Videotape Recording</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Guaranha, Mirian Salvadori Bittar</creatorcontrib><creatorcontrib>Da Silva Sousa, Patrícia</creatorcontrib><creatorcontrib>De Araújo‐Filho, Gerardo Maria</creatorcontrib><creatorcontrib>Lin, Katia</creatorcontrib><creatorcontrib>Guilhoto, Laura Maria Figueiredo Ferreira</creatorcontrib><creatorcontrib>Caboclo, Luís Otávio Sales Ferreira</creatorcontrib><creatorcontrib>Yacubian, Elza Márcia Targas</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Epilepsia (Copenhagen)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Guaranha, Mirian Salvadori Bittar</au><au>Da Silva Sousa, Patrícia</au><au>De Araújo‐Filho, Gerardo Maria</au><au>Lin, Katia</au><au>Guilhoto, Laura Maria Figueiredo Ferreira</au><au>Caboclo, Luís Otávio Sales Ferreira</au><au>Yacubian, Elza Márcia Targas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Provocative and inhibitory effects of a video‐EEG neuropsychologic protocol in juvenile myoclonic epilepsy</atitle><jtitle>Epilepsia (Copenhagen)</jtitle><addtitle>Epilepsia</addtitle><date>2009-11</date><risdate>2009</risdate><volume>50</volume><issue>11</issue><spage>2446</spage><epage>2455</epage><pages>2446-2455</pages><issn>0013-9580</issn><eissn>1528-1167</eissn><coden>EPILAK</coden><abstract>Summary Purpose:  Studies suggest that higher cognitive functions could precipitate seizures in juvenile myoclonic epilepsy (JME). The present study aimed to analyze the effects of higher mental activity on epileptiform discharges and seizures in patients with JME and compare them to those of habitual methods of activation. Methods:  Seventy‐six patients with JME (41 female) underwent a video‐EEG (electroencephalography) neuropsychologic protocol (VNPP) and habitual methods of activation for 4–6 h. Results:  Twenty‐nine of the 76 (38.2%) presented provocative effect, and inhibition was seen in 28 of 31 (90.3%). A mixed effect was observed in 11 (35.5%), and 30 patients (39.5%) suffered no effect of VNPP. Action‐programming tasks were more effective than thinking in provoking epileptiform discharges (23.7% and 11.0% of patients, respectively, p = 0.03). Inhibitory effect was observed equally in the various categories of tasks, except in mental calculation, which had a higher inhibitory rate. Habitual methods of activation were more effective than VNPP in provoking discharges. Anxiety disorders were diagnosed in 24 of 58 patients (41.4%); anxious patients had greater discharge indexes and no significant inhibitory effect on VNPP. Discussion:  Praxis exerted the most remarkable provocative effect, in accordance with the motor circuitry hyperexcitability hypothesis in JME. Inhibitory effect, which had no such task specificity, might be mediated by a widespread cortical–thalamic pathway, possibly involving the parietal cortex. The frequent inhibitory effect found under cortical activation conditions, influenced by the presence of anxiety, supports nonpharmacologic therapeutic interventions in JME.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>19453714</pmid><doi>10.1111/j.1528-1167.2009.02126.x</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record>
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subjects Activation methods
Adolescent
Adult
Anticonvulsants. Antiepileptics. Antiparkinson agents
Biological and medical sciences
Cerebral Cortex - physiopathology
Child
Electroencephalography - methods
Electroencephalography - statistics & numerical data
Epilepsy, Reflex - physiopathology
Female
Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy
Higher Nervous Activity - physiology
Humans
Idiopathic generalized epilepsy
Male
Medical sciences
Middle Aged
Myoclonic Epilepsy, Juvenile - diagnosis
Myoclonic Epilepsy, Juvenile - drug therapy
Myoclonic Epilepsy, Juvenile - physiopathology
Nervous system (semeiology, syndromes)
Neural Inhibition - physiology
Neural Pathways - physiopathology
Neurology
Neuropharmacology
Neuropsychology
Parietal Lobe - physiopathology
Pharmacology. Drug treatments
Photic Stimulation
Precipitant factors
Precipitating Factors
Reflex epilepsy
Task Performance and Analysis
Thalamus - physiopathology
Videotape Recording
title Provocative and inhibitory effects of a video‐EEG neuropsychologic protocol in juvenile myoclonic epilepsy
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