Pudendal nerve latency time in normal women via intravaginal stimulation

Pudendal nerve latency time in normal women via intravaginal stimulation

Author Cavalcanti, Geraldo A. Autor UNIFESP Google Scholar
Manzano, Gilberto Mastrocola Autor UNIFESP Google Scholar
Giuliano, Lydia M. Autor UNIFESP Google Scholar
Nobrega, João Antonio Autor UNIFESP Google Scholar
Srougi, Miguel Autor UNIFESP Google Scholar
Bruschini, Homero Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract INTRODUCTION & OBJECTIVES: Studies of motor conduction for the efferent functional assessment of the pudendal nerve in women with pelvic dysfunctions have been conducted through researching distal motor latency times. The transrectal approach has been the classic approach for this electrophysiological examination. The objective of the present study is to verify the viability of the transvaginal approach in performing the exam, to establish normal values for this method and to analyze the influence of age, stature and parity in the latency value of normal women. MATERIALS AND METHODS: A total of 23 volunteers without genitourinary pathologies participated in this study. In each, pudendal motor latency was investigated through the transvaginal approach, which was chosen due to patient s higher tolerance levels. RESULTS: The motor response represented by registering the M-wave was obtained in all volunteers on the right side (100%) and in 13 volunteers on the left side (56.5%). The mean motor latency obtained in the right and left was respectively: 1.99 ± 0.41 and 1.92 ± 0.48 milliseconds (ms). There was no difference between the sides (p = 0.66). Latency did not correlate with age, stature or obstetric history. The results obtained in the present study were in agreement with those found by other researchers using the transrectal approach. CONCLUSION: The vaginal approach represents an alternative for pudendal nerve distal motor latency time, with similar results to those achieved through the transrectal approach. Normative values obtained herein might serve as a comparative basis for subsequent physiopathological studies.
Keywords electrodiagnosis
pelvic floor
urinary incontinence
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Date 2006-12-01
Published in International braz j urol. Sociedade Brasileira de Urologia, v. 32, n. 6, p. 705-712, 2006.
ISSN 1677-5538 (Sherpa/Romeo)
Publisher Sociedade Brasileira de Urologia
Extent 705-712
Origin http://dx.doi.org/10.1590/S1677-55382006000600012
Access rights Open access Open Access
Type Article
SciELO ID S1677-55382006000600012 (statistics in SciELO)
URI http://repositorio.unifesp.br/handle/11600/3355

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