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The negative predictive value of preoperative urodynamics for stress urinary incontinence following prolapse surgery

  • Tania Sierra
  • Gina Sullivan
  • Katherine Leung
  • Michael Flynn
Original Article
  • 13 Downloads

Abstract

Introduction and hypothesis

There is no consensus for the evaluation of stress urinary incontinence (SUI) in patients planning pelvic organ prolapse (POP) surgery. We sought to determine the negative predictive value (NPV) of prolapse reduction during preoperative urodynamics (UDS) for postoperative SUI.

Methods

We performed a retrospective study of 322 women with preoperative UDS and subsequent POP surgery. Abstracted data included demographics, prolapse stage, prior prolapse or incontinence surgery, preoperative SUI complaint, prolapse reduction method, and length of follow-up. Any woman who reported SUI symptoms within 6 months from surgery was considered a diagnostic UDS failure. The NPV was calculated by dividing the number of patients who did not demonstrate SUI on UDS and had no postoperative SUI by the number of patients who did not demonstrate SUI on UDS.

Results

Patient characteristics (age, race, parity, prolapse stage, prior surgery, and length of follow-up) were similar among those who had urodynamic-proven SUI and those who did not. The NPV of preoperative UDS for postoperative SUI in patients undergoing any POP repair was 97.9.0% [95% confidence interval (CI) 92.7–99.7%]. The NPV remained high in the subset of patients who underwent an apical suspension—98.6% (95% CI 92.7–100.0%)—as well as those without a preoperative SUI complaint—98.6% (95% CI 92.3–100.0%). In most patients (72.9%), a ring pessary with support combined with intraprocedural manipulation allowed for reliable stress testing.

Conclusions

Our study supports using preoperative UDS as a screening tool to avoid unnecessary concomitant continence procedures. Further studies are needed to individualize patient preoperative assessment and surgical counseling.

Keywords

Screening Stress urinary incontinence Urodynamics 

Notes

Compliance with ethical standards

Conflicts of interest

None.

References

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Copyright information

© The International Urogynecological Association 2019

Authors and Affiliations

  • Tania Sierra
    • 1
  • Gina Sullivan
    • 1
  • Katherine Leung
    • 1
  • Michael Flynn
    • 1
  1. 1.Division of Urogynecology and Reconstructive Pelvic SurgeryUniversity of Massachusetts Medical SchoolWorcesterUSA

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