Pudendal somatosensory evoked potentials in normal women

Cavalcanti, Geraldo A.; Bruschini, Homero; Manzano, Gilberto Mastrocola; Nunes, Karlo Faria; Giuliano, Lydia Maria Pereira; Nóbrega, J.A.M.; Srougi, Miguel

doi:10.1590/s1677-55382007000600010

Cited by 12 publications

(2 citation statements)

References 19 publications

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“…Other factors such as high body mass index could contribute to LUT symptoms, especially urgency and stress incontinence, although this was not analysed. However, body mass index has not been shown to impact pelvic neurophysiology findings [23]. Matching with a control cohort would have increased the strength of the study; however, the design of our study precluded this possibility as pelvic neurophysiology is not performed routinely in the absence of suspected nerve lesions.…”

Section: Discussionmentioning

confidence: 98%

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Sacral Tarlov cysts: Neurophysiology abnormalities and correlation with pelvic sensory and visceral symptoms

Hentzen

Cabrilo

Malladi

et al. 2023

Euro J of Neurology

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Background and purpose Recent studies suggest a possible association between Tarlov cysts (TCs), usually considered as incidental radiological findings, and neurological symptoms such as pain, numbness and urogenital complaints. The aim was to explore the relationship between TCs and sacral nerve root functions using pelvic neurophysiology tests, and to correlate changes with clinical symptoms and magnetic resonance imaging (MRI) findings. Methods Consecutive patients with sacral TCs, referred for pelvic neurophysiology testing and presenting with at least one symptom related to the pelvic area, participated in a cross‐sectional review of symptoms using validated questionnaires. Findings of pelvic neurophysiology (pudendal sensory evoked potentials, sacral dermatomal sensory evoked potentials, external anal sphincter electromyography) and urodynamics testing were collected retrospectively. The relationship between neurophysiology, MRI findings and patients' symptoms was assessed using Fisher and ANOVA tests. Results Sixty‐five females were included (mean age 51.2 ± 12.1 years). The commonest symptom was pain (92%). Urinary (91%), bowel (71%) and sexual (80%) symptoms were also frequently reported. Thirty‐seven patients (57%) had abnormal neurophysiology findings reflecting sacral root dysfunction. No association was seen between MRI findings (size, location of the cysts, severity of compression) and neurophysiology. A negative association was observed between neurophysiology abnormalities and occurrence of urgency urinary incontinence (p = 0.03), detrusor overactivity (p < 0.01) and stress urinary incontinence (p = 0.04); however, there was no association with voiding difficulties. Conclusions Contrary to current understanding, TCs are associated with injury to the sacral somatic innervation in the majority of patients with presumed symptomatic cysts. However, urinary incontinence is unlikely to be related to TC‐induced nerve damage.

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Section: Discussionmentioning

confidence: 98%

“…The S2 and S3 dermatomal SEP responses were abnormal if absent, or if the inter‐side latency difference was >4.5 ms, or there was >50% inter‐side difference in amplitude [21, 22]. Incidental abnormalities have not been reported in healthy women [23].…”

Section: Methodsmentioning

confidence: 99%