Evaluation of sacral neuromodulation system with new six-contact points electrode for the treatment of bladder dysfunction
10.3760/cma.j.cn112330-20220624-00380
- VernacularTitle:新型六触点电极与四触点电极骶神经调控系统治疗难治性膀胱过度活动症的效果比较
- Author:
Yiming WANG
1
;
Guoqing CHEN
;
Limin LIAO
Author Information
1. 中国康复研究中心 北京博爱医院泌尿外科，北京 100068
- Keywords:
Urinary bladder, overactive;
Sacral neuromodulation;
Six-contacts points electrode;
Voltage;
Efficacy
- From:
Chinese Journal of Urology
2022;43(9):681-685
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the effects of sacral neuromodulation (SNM)using the new six-contact electrode vs. the four-contact electrode in patients with refractory overactive bladder.Methods:The clinical data of 29 patients underwent SNM testing therapy from January 2018 to January 2020 in China Rehabilitation Research Center were reviewed. In six-contact points electrode group 16 patients accepted SNM with new six-contact points electrode, while 13 patients in four-contact points electrode group accepted SNM with four-contact points electrode. There were no significant differences between the two group in age [(51.63±4.67) vs. (51.85±7.18) years], gender (male/female, 4/12 and 5/8), urination frequency [(22.10±9.05) vs. (21.79±8.05) times/24h], mean voided volume [(135.68±56.98) vs. (131.00±53.05) ml], and urgency score [(2.78±0.97) vs. (3.02±0.91)] (all P>0.05). The number of sensitive contact points, the ratio of reaction contact points, operation time of stage I and the success rate of two groups were calculated. Results:The mean number of sensitive points of six-contact points electrode group (3.31± 0.95) was significantly higher than that of the four-contact points electrode group (1.85± 0.38), ( P<0.05). There was no significant difference in the ratio of reaction contact points [ (96.87±6.71)% vs. (96.15± 9.39)%] and operation time of stage I [(71.25± 18.21)min vs.(68.85± 10.83)min]between six-contact points electrode group and four-contact points electrode group ( P<0.05). The contact E4 and E5 of six-contact electrodes had similar reaction voltage ( P>0.05). The implant rate of six-contact points electrode group was (14/16, 87.5%), which was higher than that of four-contact points electrode group (10/13, 76.9%), but there was no statistical difference ( P>0.05). Conclusions:This study showed that six-contact electrodes has more sensitive points compared with four-contact electrodes. Application of six contact electrodes, patients might get a higher implant rate.
