Comparison between sensory testing modalities for the evaluation of afferent nerve functioning in the genital area

Lior Lowenstein*, Carely Davis, Kathy Jesse, Ramon Durazo-Arvizu, Kimberly Kenton

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Determine the reproducibility and relationship between current perception threshold testing (CPT) and quantitative sensory testing (QST) in the genital area. Sixteen women underwent CPT and QST of the vagina. CPT was done at 2,000, 250, and 5 Hz (corresponding to A-β, A-σ, and C fibers, respectively), and QST testing was done using thermal (C fibers), vibratory (A-σ fibers), and cold (A-σ and C fibers) sensation. Ten women underwent repeated testing 1 week later. Thermal and vibratory thresholds correlated with CPT at 5 and 2,000 Hz (ρ = 0.77, P = 0.002 and ρ = 0.6, P = 0.01, respectively). Repeated thermal, vibratory, and cold thresholds had good concordance correlation (rho_c = 0.83, rho_c = 0.96, rho_c = 0.77). CPT at 5 and 2,000 Hz were also strongly correlated (rho_c = 69, rho_c = .7). CPT and QST testing stimulate similar afferent nerve fiber populations in the vagina.

Original languageEnglish (US)
Pages (from-to)83-87
Number of pages5
JournalInternational Urogynecology Journal
Volume20
Issue number1
DOIs
StatePublished - Jan 1 2009

Keywords

  • CPT
  • Current perception threshold
  • QST
  • Quantitative sensory testing
  • Sensory thresholds

ASJC Scopus subject areas

  • Obstetrics and Gynecology
  • Urology

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