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Background Sacral neuromodulation (SNM) is a minimally invasive fully reversible therapy that was approved in 1997 for overactive bladder syndrome (OAB) refractory to behavior modification and pharmacotherapy. Despite being in use for over two decades, the data on medium to long-term safety and efficacy of SNM in OAB is limited. We investigated the medium-term efficacy and safety of SNM along with the predictive factors for its success in patients with refractory OAB. Methods A retrospective consecutive case series of 66 patients undergoing SNM for refractory OAB between July 2009 and July 2018. All patients underwent a test period followed by permanent implantation, if there was > = 50% improvement in any symptom. The primary outcome was "success" defined as > = 50% improvement in any clinical parameter based on the subjective assessment of patient's response. The secondary outcomes were number of pads used in 24 hours, post-operative complications and re-operation rates. Results 66 females with an average age of 62.7 years were included. 55/66 patients (83.3%) had a successful test phase and underwent permanent implantation. After a median follow-up of 32 months, SNM was successful in 41/55 (74.5%) patients. Mean number of pads used in 24 hours decreased significantly from 3.5 preoperatively to 1.2 at last follow-up (p<0.001). 8/55 (14.5%) patients reported complications of pain, lead migration, wound dehiscence and device malfunction. 10/55 (18.2%) patients underwent revision surgeries after a median duration of 21.9 months. Device was explanted in 15/55 (27.3%) patients after a median duration of 24 months. No significant predictor for success was identified.

An 84-year-old vaginally grand multiparous woman presented with a vesicovaginal fistula (VVF) after appropriate use of a Gehrung pessary for the past 12 years for stage III pelvic organ prolapse. The patient reported strict adherence to removing her pessary nightly and replacing it in the morning for the last 12 years. One morning, she awoke and noted a sudden gush of urine through the vagina followed by continuous leakage. Given the complex nature of VVF repair with concurrent stage III pelvic organ prolapse, the patient was referred to urogynecologic care. A Latzko fistula repair and LeFort colpocleisis were performed without complication. The patient recovered well with complete resolution of her pelvic organ prolapse and VVF based on negative cystogram findings at 3 weeks postoperatively. At 12 weeks postoperatively the patient denied any urine leakage or pelvic organ prolapse.

This is a rare case of a vesicouterine fistula developing during a pregnancy with no previous cesarean. Accurate diagnosis is essential because surgical repair has an excellent outcome.

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Objective: The eCoin (Valencia Technologies Corporation, Valencia, CA) is a battery-powered, nickel-sized and shaped neuromodulation device for the treatment of overactive bladder, and it is implanted in the lower leg in a short office or outpatient procedure under local anesthesia. A followon trial was conducted to evaluate the feasibility, safety, and efficacy of eCoin reimplantation.Methods: This was a prospective, single-arm, open-label study, including 23 participants with refractory urgency urinary incontinence (UUI) who were previously participants in the eCoin clinical feasibility trial. This follow-on study was conducted at 7 sites in the United States and New Zealand. Participants were reimplanted with a new eCoin device and activated after 4 weeks. Bladder diary data and validated quality-of-life instruments, collected at 12 weeks and 24 weeks postactivation, were compared with baseline.Results: Participants of the study were considered responders if they reported a ≥ 50% reduction from baseline in episodes of UUI on a 3-day voiding diary. At 12 weeks of treatment, 74% (95% confidence interval [CI], 52%-90%) of participants were considered responders. At 24 weeks of treatment, 82% (95% CI, 60%-95%) of participants were considered responders with 36% (95% CI, 20%-57%) of participants achieving complete continence. There were no device-related serious adverse events reported during the study. Conclusions:The reimplantation of eCoin was both safe and effective in treating UUI associated with overactive bladder syndrome. The demonstrated significant reduction or resolution of symptoms with no serious safety concern suggests that eCoin is a convenient and maintainable therapeutic device.

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