PMID- 35525837 OWN - NLM STAT- MEDLINE DCOM- 20221222 LR - 20230124 IS - 2405-4569 (Electronic) IS - 2405-4569 (Linking) VI - 8 IP - 6 DP - 2022 Nov TI - Sacral Neuromodulation Using a Novel Device with a Six-contact-point Electrode for the Treatment of Patients with Refractory Overactive Bladder: A Multicenter, Randomized, Single-blind, Parallel-control Clinical Trial. PG - 1823-1830 LID - S2405-4569(22)00083-9 [pii] LID - 10.1016/j.euf.2022.04.006 [doi] AB - BACKGROUND: A novel sacral neuromodulation system (SacralStim) which has an electrode with six contact points was recently designed. OBJECTIVE: To evaluate the effectiveness and safety of the SacralStim system for treating patients with refractory overactive bladder (OAB). DESIGN, SETTING, AND PARTICIPANTS: This was a multicenter, randomized, single-blind clinical trial. Patients with refractory OAB were enrolled from January 2018 to May 2020. INTERVENTION: Participants were randomly allocated to the treatment group (SNM on) or the control group (SNM off) for a single-blind period of 12 +/- 2 wk. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: The primary outcome was the percentage of patients with a reduction in the average number of voids/24 h of at least 50% at the 12-wk follow-up visit. Other follow-up evaluations, including voiding diary outcomes, questionnaires on Overactive Bladder Symptom Score (OABSS), quality of life (QoL), device satisfaction, and causes of adverse events (AEs), were performed over the first 48 wk after implantation. RESULTS AND LIMITATIONS: The therapeutic success rate at 12 wk was 56.76% in the treatment group and 11.11% in the control group (p < 0.001). There were significant differences in voiding diary variables between the two groups, including changes in the average number of voids/24 h, micturition volume/void, and improvement in the urge incontinence ratio. No severe AEs occurred. A limitation is the sham stimulation used as a control in the study. A head-to-head study is required to make a direct comparison of devices with six and four contact points. CONCLUSIONS: This clinical trial provides strong evidence that patients with refractory OAB benefit from the novel SacralStim system. More research is required for direct comparison of the SacralStim system with traditional four-contact-point devices. PATIENT SUMMARY: This study confirms the effectiveness and safety of a novel SacralStim system that stimulates the sacral nerve for treatment of overactive bladder. The system has an electrode with six contact points and can provide more programming options after implantation. CI - Copyright (c) 2022 European Association of Urology. Published by Elsevier B.V. All rights reserved. FAU - Liao, Limin AU - Liao L AD - Department of Urology, China Rehabilitation Research Center, Beijing, China; School of Rehabilitation, Capital Medical University, Beijing, China; Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; University of Health and Rehabilitation Sciences, Qingdao, China. Electronic address: lmliao@263.net. FAU - Zhou, Zhonghan AU - Zhou Z AD - Department of Urology, China Rehabilitation Research Center, Beijing, China; School of Rehabilitation, Capital Medical University, Beijing, China; Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; University of Health and Rehabilitation Sciences, Qingdao, China. FAU - Chen, Guoqing AU - Chen G AD - Department of Urology, China Rehabilitation Research Center, Beijing, China; School of Rehabilitation, Capital Medical University, Beijing, China; Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China. FAU - Xu, Zhihui AU - Xu Z AD - Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, China. FAU - Huang, Banggao AU - Huang B AD - Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, China. FAU - Chong, Tie AU - Chong T AD - Department of Urology, Second Affiliated Hospital of Nanjing Medical University, Nanjing, China. FAU - Chen, Qi AU - Chen Q AD - Department of Urology, Second Affiliated Hospital of Nanjing Medical University, Nanjing, China. FAU - Wei, Zhongqing AU - Wei Z AD - Department of Urology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China. FAU - Shen, Baixin AU - Shen B AD - Department of Urology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China. FAU - Chen, Zhong AU - Chen Z AD - Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science Technology, Wuhan, China. FAU - Ling, Qing AU - Ling Q AD - Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science Technology, Wuhan, China. FAU - Weng, Zhiliang AU - Weng Z AD - Department of Urology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China. FAU - Jiang, Haihong AU - Jiang H AD - Department of Urology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China. FAU - Shi, Benkang AU - Shi B AD - Department of Urology, Qilu Hospital of Shandong University, Jinan, China. FAU - Li, Yan AU - Li Y AD - Department of Urology, Qilu Hospital of Shandong University, Jinan, China. FAU - Wang, Yiming AU - Wang Y AD - Department of Urology, China Rehabilitation Research Center, Beijing, China; School of Rehabilitation, Capital Medical University, Beijing, China; Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China. LA - eng PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20220504 PL - Netherlands TA - Eur Urol Focus JT - European urology focus JID - 101665661 SB - IM MH - Humans MH - Quality of Life MH - Single-Blind Method MH - *Urinary Bladder, Overactive/therapy OTO - NOTNLM OT - Overactive bladder OT - Randomized controlled trial OT - Sacral neuromodulation OT - SacralStim system OT - Six-contact electrode EDAT- 2022/05/08 06:00 MHDA- 2022/12/15 06:00 CRDT- 2022/05/07 22:14 PHST- 2021/12/25 00:00 [received] PHST- 2022/02/27 00:00 [revised] PHST- 2022/04/12 00:00 [accepted] PHST- 2022/05/08 06:00 [pubmed] PHST- 2022/12/15 06:00 [medline] PHST- 2022/05/07 22:14 [entrez] AID - S2405-4569(22)00083-9 [pii] AID - 10.1016/j.euf.2022.04.006 [doi] PST - ppublish SO - Eur Urol Focus. 2022 Nov;8(6):1823-1830. doi: 10.1016/j.euf.2022.04.006. Epub 2022 May 4.