The Impact of New Sacral Neuromodulation Technologies on the Quality of Life of Patients with Refractory Overactive Bladder: A Mini-Review

Abstract

Overactive bladder (OAB) affects millions of patients worldwide and significantly impairs quality of life. For patients with refractory OAB who fail conservative and pharmacological therapies, sacral neuromodulation (SNM) has emerged as a highly effective minimally invasive treatment option. Recent technological advances, particularly the development of rechargeable SNM systems with extended longevity and miniaturized designs, have transformed the therapeutic landscape. This mini review examines the impact of new SNM technologies on patient quality of life, comparing traditional non-rechargeable devices with newer rechargeable systems, and evaluating clinical efficacy, safety profiles, and patient satisfaction outcomes. Evidence demonstrates that both traditional and novel SNM systems provide sustained improvements in OAB symptoms and quality of life, with success rates ranging from 67-90% at long-term follow-up. Rechargeable systems offer the advantage of extended device longevity (15+ years) and reduced need for replacement surgeries, though recent data suggest potentially higher revision rates related to charging difficulties. Quality of life improvements are consistently demonstrated across multiple validated instruments, with patients reporting significant reductions in symptom burden and enhanced satisfaction. This review synthesizes current evidence to assist clinicians in navigating the evolving SNM landscape and selecting the most appropriate technology for patients with refractory OAB.