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논문 기본 정보

자료유형
학술저널
저자정보
Xing Li (Department of Urology Capital Medical University) Limin Liao (Department of Urology Capital Medical University) Guoqing Chen (Department of Urology Capital Medical University) Zhaoxia Wang (Department of Urology Capital Medical University) Han Deng (Department of Urology Capital Medical University)
저널정보
대한배뇨장애요실금학회 International Neurourology Journal International Neurourology Journal 제21권 제2호
발행연도
2017.6
수록면
102 - 108 (7page)

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Purpose: We investigated the effects of different stimulation frequencies on the inhibition of bladder overactivity by sacral neuromodulation (SNM) in pigs. Methods: Implant-driven stimulators were used to stimulate the S3 spinal nerve in 13 pigs. Cystometry was performed by infusing normal saline (NS) or acetic acid (AA). SNM (pulse width, 210 μsec) at frequencies ranging from 5 to 50 Hz was conducted at the intensity threshold at which observable perianal and/or tail movement was induced. Multiple cystometrograms were performed to determine the effects of different frequencies on the micturition reflex. Results: AA-induced bladder overactivity significantly reduced the bladder capacity (BC) to 34.4%±4.7% of the NS control level (354.4±35.9 mL) (P<0.05). During AA infusion, SNM at 5 Hz did not significantly change the BC (48.1%±6.9% of the NS control level) (P>0.05), but SNM at 15, 30, and 50 Hz significantly increased the BC to 54.5%±7.1%, 55.2%±6.5%, and 57.2%±6.1% of the NS control level (P<0.05), respectively. No significant differences were found among the results obtained using frequencies of 15, 30, and 50 Hz (P>0.05). Conclusions: This study demonstrated that 15 Hz was an appropriate frequency for SNM and that frequencies higher than 15 Hz did not lead to better surgical outcomes.

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