Navegando por Palavras-chave "Potenciais somatosensoriais evocados"

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    Comparação das alterações do potencial evocado somatosensorial no tratamento cirúrgico da escoliose idiopática entre técnicas com e sem amarrilha sublaminar
    (Sociedade Brasileira de Coluna, 2010-09-01) Ueta, Renato Hiroshi Salvioni [UNIFESP]; Del Curto, David [UNIFESP]; Wajchenberg, Marcelo [UNIFESP]; Martins Filho, Délio Eulálio [UNIFESP]; Ferreira, Ricardo [UNIFESP]; Puertas, Eduardo Barros [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    OBJECTIVE: to compare the number of events with alteration in the somatosensory evoked potentials (SSEP) and its repercussion between different techniques of surgical treatment for idiopathic scoliosis, with and without sublaminar wiring. METHODS: twenty-five surgical procedures with flexible curves for treatment of idiopathic scoliosis were reviewed in the period of November 1996 to September 1999. They were divided into two groups: without sublaminar wiring (Cotrel-Dubousset's system) (Group I); and with sublaminar wiring (Harrington-Luque's system and rectangle of Hartshill) (Group II). In all surgeries, the intraoperative neurophysiologic monitoring with Somatosensory Evoked Potentials (SSEPs) was used. RESULTS: according to the findings, a bigger frequency of monitoring changes was observed during and at the end of the surgery in Group II. A high incidence of false-negative changes was also verified. No patient with neurological damages was observed. CONCLUSION: There are still doubts about the safest method for the surgical treatment of idiopathic scoliosis. The results presented in this study suggest a smaller incidence of SSEPs changes in the patients treated with Cotrel-Dubousset's system.
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    Comparação entre o teste de despertar e a monitoração neurofisiológica intra-operatória com potencial evocado somato-sensitivo nas cirurgias de escoliose
    (Sociedade Brasileira de Coluna, 2009-03-01) Puertas, Eduardo Barros [UNIFESP]; Wajchenberg, Marcelo [UNIFESP]; Ferreira, Ricardo [UNIFESP]; Scamardi, Fabio Fernando Roman [UNIFESP]; Trandafilov Júnior, Miguel [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    OBJECTIVE: the objective of this study is to compare the incidence of neurological injuries in corrective surgeries for rigid curves of idiopathic scoliosis using only the wake-up test and using the intraoperative neurophysiologic monitoring with somato sensitive evoked potentials. METHODS: we performed 111 surgeries to correct idiopathic scoliosis, with rigid curves through instrumentation and posterior fusion in the period January 1985 to May 2001. The procedures were divided into two groups, with 80 patients operated without the intra-operative monitoring, using only the wake-up test, from January 1985 to January 1998. From May 1998 the surgeries began to be monitored with somato-sensitive evoked potential (PESS) for prevention of neurological damage, forming a second group of 31 patients. RESULTS: in the first group, one patient had irreversible neurological damage and four patients had reversible neurological damage. Among the 31 patients in the second group, with s somato-sensitive evoked potential during surgery, eight had reversible neurological damage in the intra-operatory, without any clinical effect after the procedure. CONCLUSION: the findings suggest the effectiveness of intra-operative monitoring, with the somato-sensitive evoked potential, for the prevention of neurological injuries in the corrective surgeries of rigid curves in idiopathic scoliosis.