Balancing the possibility of needing a future incontinence procedure versus a future urethral sling revision surgery: a tradeoff analysis for continent women undergoing pelvic organ prolapse surgery.

INTRODUCTION AND HYPOTHESIS

Although urinary incontinence surgery has potential benefits such as preventing de novo stress urinary incontinence in women undergoing pelvic organ prolapse (POP) surgery, it comes with the potential cost of overtreatment and complications. We compared future surgery rates in a population cohort of women undergoing vaginal pelvic organ prolapse surgery.

METHODS

All women undergoing POP repair in California from 2005 to 2011 were identified from the Office of Statewide Health Planning and Development databases. Rates of repeat surgery in those with and without concomitant urethral sling procedures were compared. To control for confounding effects, multivariate mixed effects logistic regression models were constructed to compare each woman's individualized risk of undergoing either sling revision surgery or future incontinence surgery.

RESULTS

In the cohort, 38,456 underwent a sling procedure at the time of POP repair and 42,858 did not. The future surgery rate was higher for sling-related complications in the POP + sling cohort compared with future incontinence surgery in the POP alone cohort (3.5% versus 3.0% respectively, p < 0.001). The difference persisted in multivariate modeling, where most women (60%) are at a higher risk of requiring sling revision surgery compared with needing a future primary incontinence procedure (40%).

CONCLUSIONS

Women who undergo vaginal prolapse repair without an incontinence procedure are at a low risk of future incontinence surgery. Women without urinary incontinence who are considering vaginal POP surgery should be informed of the risks and benefits of including a sling procedure.