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      Seizure's outcome after cortical resections including the face and tongue rolandic areas in patients with refractory epilepsy and normal MRI submitted to subdural grids' implantation Translated title: Resultados cirúrgicos em pacientes portadores de epilepsia refratária e ressonância magnética normal submetidos a ressecções das áreas rolândicas da face e língua investigados por meio de eletrodos subdurais

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          Abstract

          PURPOSE: To study the seizure's outcome in patients with refractory epilepsy and normal MRI submitted to resections including the rolandic cortex. METHODS: Four adult patients were studied. All patients had motor or somatosensory simple partial seizures and normal MRI and were submitted to subdural grids' implantation with extensive coverage of the cortical convexity (1 in the non-dominant and 3 in the dominant hemisphere). RESULTS: ECoG was able to define focal areas of seizures' onset in every patient. All patients were submitted to resection of the face and tongue motor and sensitive cortex; two patients had resections including the perirolandic cortex and 2 had additional cortical removals. Three patients are seizures' free and one had a greater then 90% reduction in seizure frequency. CONCLUSION: Resections including the face and tongue rolandic cortex can be safely performed even within the dominant hemisphere.

          Translated abstract

          OBJETIVO: Estudar o efeito na frequência de crises epilépticas de ressecções de cortex rolândico em pacientes com epilepsia refratária e ressonância normal. MATERIAL: Quatro pacientes epilépticos adultos foram estudados. Todos possuíam crises parciais simples motoras ou sensitivas e ressonância normal, e foram submetidos ao implante de eletrodos subdurais cobrindo extensamente a convexidade hemisférica (1 no hemisfério não-dominante e 3 no hemisfério dominante). RESULTADOS: O ECoG foi capaz de definir áreas ictais focais em todos os pacientes. Todos os pacientes foram submetidos à ressecção das áreas da face e língua do cortex rolândico motor e sensitivo; em dois, o cortex perirolândico foi incluído na ressecção e em dois pacientes, outras ressecções corticais foram adicionadas. Três pacientes estão livres de crises e um obteve melhora maior que 90% da frequência de crises. CONCLUSÃO: Ressecções corticais envolvendo o cortex rolândico da língua e face podem ser realizadas com segurança mesmo no hemisfério dominante.

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          Sensory cortical tongue representation in man.

          Extensive data on cortical tongue representation were analyzed in 100 patients who underwent craniotomy and cortical mapping by electrical stimulation for surgical treatment of epilepsy. As noted in the literature, the tongue is extensively represented within the central nervous system with a highly organized sensorimotor system and the data from this study corroborate a large cortical representation of the human tongue over the postcentral gyrus. The tongue was found to have a clear somatotopic organization over the postcentral area and to be represented bilaterally to a significant degree. Furthermore, the tongue appears to have an asymmetrical sensory cortical representation, as cerebral dominance for speech is more extensively represented on the dominant hemisphere. Cortical tongue mapping has proved extremely useful in determining the point of junction of the central and Sylvian sulci, a crucial landmark during surgical cortical resections.
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            Seizures with Onset in the Sensorimotor Face Area: Clinical Patterns and Results of Surgical Treatment in 20 Patients

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              Lingual seizures.

              A 73-year-old patient with hyperglycemia and rheumatoid arthritis presented with attacks of involuntary lingual movements that were associated with pain at the base of the tongue, often followed by aversion of head and eyes to the left with clonic contractions of the left corner of the mouth. Seizures could be induced by a combination of specific movement and somesthetic stimuli. Ictal EEG recording revealed a focal epileptiform discharge in the right centrofrontal area, thus confirming that the patient had lingual seizures, an extremely unusual manifestation.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                anp
                Arquivos de Neuro-Psiquiatria
                Arq. Neuro-Psiquiatr.
                Academia Brasileira de Neurologia - ABNEURO (São Paulo )
                1678-4227
                September 2001
                : 59
                : 3B
                : 717-721
                Affiliations
                [1 ] Hospital Brigadeiro
                [2 ] Clinica de Epilepsia de São Paulo Brazil
                Article
                S0004-282X2001000500012
                10.1590/S0004-282X2001000500012
                0813b4e9-2520-44cc-91dc-3f2c75d68e05

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0004-282X&lng=en
                Categories
                NEUROSCIENCES
                PSYCHIATRY

                Neurosciences,Clinical Psychology & Psychiatry
                epilepsy,surgery,outcome,subdural grids,rolandic cortex,epilepsia,cirurgia,resultados,placas subdurais,córtex rolândico

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