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Techniques for optimizing lead placement during sacral neuromodulation.

Nicole A Dodge1, Brian J Linder2,3

  • 1From the Department of Urology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.

International Urogynecology Journal
|December 26, 2019
PubMed
Summary
This summary is machine-generated.

Optimizing lead placement for sacral neuromodulation improves patient outcomes. Proper technique for sacral neuromodulation device placement resolves refractory urinary urgency incontinence and discomfort.

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Area of Science:

  • Urology
  • Neurology
  • Biomedical Engineering

Background:

  • Urinary urgency incontinence can be refractory to conservative treatments.
  • Sacral neuromodulation is an option for refractory cases, but suboptimal lead placement can limit efficacy.
  • Device revision may be necessary for patients experiencing inadequate symptom relief or discomfort.

Observation:

  • A case study of a 56-year-old female with refractory urinary urgency incontinence is presented.
  • The patient had a previously placed sacral neuromodulation device that provided insufficient benefit and uncomfortable stimulation.
  • Technical considerations for lead placement optimization were performed during device revision.

Findings:

  • Fluoroscopic guidance was used to identify the S3 foramen for lead placement.
  • Testing for bellows and toe responses, along with motor response thresholds (< 2 V), guided optimal lead positioning.
  • Post-revision, the patient experienced significant improvement in daytime frequency (from 11 to 6 episodes/day) and resolution of incontinence and discomfort.

Implications:

  • Precise lead placement is critical for successful sacral neuromodulation therapy.
  • Optimized lead placement can significantly improve patient-reported outcomes for urinary dysfunction.
  • This technical approach may enhance the effectiveness of sacral neuromodulation in similar patient cases.