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Comparative Study
Journal Article
Comparison of Short Term Outcomes of Sacral Nerve Stimulation and Intradetrusor Injection of OnabotulinumtoxinA (Botox) in Women With Refractory Overactive Bladder.
Female Pelvic Medicine & Reconstructive Surgery 2015 November
OBJECTIVES: The aim of the study was to compare the short-term outcomes of sacral nerve stimulation (SNS) and intradetrusor injection of OnabotulinumtoxinA (Botox) for overactive bladder (OAB) symptoms refractory to behavioral modifications and pharmacologic therapy.
METHODS: This is a retrospective cohort study evaluating the outcomes of SNS and Botox procedures that were performed for refractory OAB symptoms at a tertiary care referral center. The primary outcome was "failure" of treatment that was defined as less than 50% improvement from the baseline symptoms at 6 months.
RESULTS: Sixty-five SNS and 63 Botox procedures met the inclusion criteria. Women undergoing Botox were more likely to report failure 6 months after the intervention as compared with those undergoing SNS (20 [31.8%] vs 7 [10.8%], P = 0.003; unadjusted odds ratio = 3.85, confidence interval = 1.5-9.93; adjusted odds ratio = 4.47, confidence interval = 1.69-14.4). However, there was no difference in the proportion of women who were started on antimuscarinic medications for persistent urgency urinary incontinence after both procedures (12 [18.5%] women in SNS group and 17 [27%] women in the Botox group, P = 0.249). The most common complication of the SNS procedure was wound related (8 [12.3%]), whereas the most common complication of the Botox procedure was urinary tract infection (31 [49.2%]).
CONCLUSIONS: The SNS resulted in lower failure rates at 6 months when performed for refractory OAB symptoms as compared with the Botox procedure. However, further studies are needed to evaluate the long-term cost-effectiveness of both procedures.
METHODS: This is a retrospective cohort study evaluating the outcomes of SNS and Botox procedures that were performed for refractory OAB symptoms at a tertiary care referral center. The primary outcome was "failure" of treatment that was defined as less than 50% improvement from the baseline symptoms at 6 months.
RESULTS: Sixty-five SNS and 63 Botox procedures met the inclusion criteria. Women undergoing Botox were more likely to report failure 6 months after the intervention as compared with those undergoing SNS (20 [31.8%] vs 7 [10.8%], P = 0.003; unadjusted odds ratio = 3.85, confidence interval = 1.5-9.93; adjusted odds ratio = 4.47, confidence interval = 1.69-14.4). However, there was no difference in the proportion of women who were started on antimuscarinic medications for persistent urgency urinary incontinence after both procedures (12 [18.5%] women in SNS group and 17 [27%] women in the Botox group, P = 0.249). The most common complication of the SNS procedure was wound related (8 [12.3%]), whereas the most common complication of the Botox procedure was urinary tract infection (31 [49.2%]).
CONCLUSIONS: The SNS resulted in lower failure rates at 6 months when performed for refractory OAB symptoms as compared with the Botox procedure. However, further studies are needed to evaluate the long-term cost-effectiveness of both procedures.
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