Stimulation of the sensory pudendal nerve increases bladder capacity in the rat.

Journal Article (Journal Article)

Pudendal nerve stimulation is a promising treatment approach for lower urinary tract dysfunction, including symptoms of overactive bladder. Despite some promising clinical studies, there remain many unknowns as to how best to stimulate the pudendal nerve to maximize therapeutic efficacy. We quantified changes in bladder capacity and voiding efficiency during single-fill cystometry in response to electrical stimulation of the sensory branch of the pudendal nerve in urethane-anesthetized female Wistar rats. Increases in bladder capacity were dependent on both stimulation amplitude and rate. Stimulation that produced increases in bladder capacity also led to reductions in voiding efficiency. Also, there was a stimulation carryover effect, and increases in bladder capacity persisted during several nonstimulated trials following stimulated trials. Intravesically administered PGE2 reduced bladder capacity, producing a model of overactive bladder (OAB), and sensory pudendal nerve stimulation again increased bladder capacity but also reduced voiding efficiency. This study serves as a basis for future studies that seek to maximize the therapeutic efficacy of sensory pudendal nerve stimulation for the symptoms of OAB.

Full Text

Duke Authors

Cited Authors

  • Hokanson, JA; Langdale, CL; Sridhar, A; Grill, WM

Published Date

  • April 2018

Published In

Volume / Issue

  • 314 / 4

Start / End Page

  • F543 - F550

PubMed ID

  • 29141938

Pubmed Central ID

  • PMC5966759

Electronic International Standard Serial Number (EISSN)

  • 1522-1466

International Standard Serial Number (ISSN)

  • 1931-857X

Digital Object Identifier (DOI)

  • 10.1152/ajprenal.00373.2017


  • eng