Risk factors and results of hemispherotomy reoperations in children
| Autor: | Ursula Thomé, Thiago Lyrio Teixeira, Enrico Salomao Ioriatti, Hélio Rubens Machado, Marcelo Volpon Santos, Ana Paula Andrade Hamad |
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| Rok vydání: | 2019 |
| Předmět: |
Male
Reoperation medicine.medical_specialty Drug Resistant Epilepsy FATORES DE RISCO Hemispherectomy medicine.medical_treatment 030218 nuclear medicine & medical imaging 03 medical and health sciences Epilepsy 0302 clinical medicine Risk Factors Seizures medicine Humans Epilepsy surgery Child business.industry Medical record Infant General Medicine medicine.disease Porencephaly Magnetic Resonance Imaging Surgery Radiological weapon Child Preschool Etiology Encephalitis Female Neurology (clinical) business Complication 030217 neurology & neurosurgery Vagus nerve stimulation Follow-Up Studies |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1092-0684 |
| Popis: | OBJECTIVEThe goal of this study was to perform an analysis of a single-center experience with hemispherotomy reoperations for refractory hemispheric pediatric epilepsy due to persistence of seizures after initial surgery. The authors also identify possible anatomical and neurophysiological reasons for hemispherotomy failure, as well as risk factors and surgical options for this subgroup of patients.METHODSA review was performed of the medical records in 18 consecutive cases in which candidates for redo hemispherotomy were treated between 2003 and 2018 at the authors’ epilepsy surgery center. Fourteen patients underwent reoperation due to seizure recurrence and were studied herein, whereas in 3 the initial surgical procedure was stopped because of uncontrollable bleeding, and the remaining patient refused to undergo a reoperation in spite of seizure recurrence and went on to have a vagus nerve stimulation device placed.RESULTSAmong the 14 patients whose seizures recurred and in whom reoperations were done, the etiology of epilepsy consisted of 7 cases with malformations of cortical development (50%), 5 cases of Rasmussen encephalitis (35.8%), 1 case of porencephaly (7.1%), and 1 case of Sturge-Weber syndrome (7.1%). Eleven patients had radiological evidence of incomplete disconnection. After reoperation, 6 patients were Engel class IA, 1 was Engel II, 5 were Engel III, and 2 were Engel IV, within a mean follow-up of 48.4 months.CONCLUSIONSPatients with malformations of cortical development have a higher risk of seizure recurrence, and these malformations comprised the main etiology in the reoperation series. Failure of an initial hemispherotomy usually occurs due to incomplete disconnection and needs to be extensively assessed. Outcomes of reoperation are most often favorable, with acceptable complication rates. |
| Databáze: | OpenAIRE |
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