Pudendal somatosensory evoked potentials in normal women

Pudendal somatosensory evoked potentials in normal women

Autor Cavalcanti, Geraldo A. Autor UNIFESP Google Scholar
Bruschini, Homero Autor UNIFESP Google Scholar
Manzano, Gilberto Mastrocola Autor UNIFESP Google Scholar
Nunes, Karlo Faria Autor UNIFESP Google Scholar
Giuliano, Lydia M. Autor UNIFESP Google Scholar
Nobrega, Joao Antonio Autor UNIFESP Google Scholar
Srougi, Miguel Autor UNIFESP Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Resumo OBJECTIVE: Somatosensory evoked potential (SSEP) is an electrophysiological test used to evaluate sensory innervations in peripheral and central neuropathies. Pudendal SSEP has been studied in dysfunctions related to the lower urinary tract and pelvic floor. Although some authors have already described technical details pertaining to the method, the standardization and the influence of physiological variables in normative values have not yet been established, especially for women. The aim of the study was to describe normal values of the pudendal SSEP and to compare technical details with those described by other authors. MATERIALS AND METHODS: The clitoral sensory threshold and pudendal SSEP latency was accomplished in 38 normal volunteers. The results obtained from stimulation performed on each side of the clitoris were compared to ages, body mass index (BMI) and number of pregnancies. RESULTS: The values of clitoral sensory threshold and P1 latency with clitoral left stimulation were respectively, 3.64 ± 1.01 mA and 37.68 ± 2.60 ms. Results obtained with clitoral right stimulation were 3.84 ± 1.53 mA and 37.42 ± 3.12 ms, respectively. There were no correlations between clitoral sensory threshold and P1 latency with age, BMI or height of the volunteers. A significant difference was found in P1 latency between nulliparous women and volunteers who had been previously submitted to cesarean section. CONCLUSIONS: The SSEP latency represents an accessible and reproducible method to investigate the afferent pathways from the genitourinary tract. These results could be used as normative values in studies involving genitourinary neuropathies in order to better clarify voiding and sexual dysfunctions in females.
Palavra-chave neurophysiology
pelvic floor
evoked potentials
electrodiagnosis
Idioma Inglês
Financiador Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Data de publicação 2007-12-01
Publicado em International braz j urol. Sociedade Brasileira de Urologia, v. 33, n. 6, p. 815-821, 2007.
ISSN 1677-5538 (Sherpa/Romeo)
Publicador Sociedade Brasileira de Urologia
Extensão 815-821
Fonte http://dx.doi.org/10.1590/S1677-55382007000600010
Direito de acesso Acesso aberto Open Access
Tipo Artigo
SciELO S1677-55382007000600010 (estatísticas na SciELO)
Endereço permanente http://repositorio.unifesp.br/handle/11600/4014

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