Sacral neuromodulation as treatment for refractory idiopathic urge urinary incontinence: 5-year results of a longitudinal study in 60 women

Purpose: We evaluated the results of sacral neuromodulation after 5-year followup in women with refractory idiopathic urge urinary incontinence. Materials and Methods: A neuromodulation system with an original (nontined) lead was implanted by open surgery after a positive percutaneous nerve evaluation in 60 women from 1990 to 2004. Voiding incontinence diary parameters were used to evaluate efficacy. Success was defined as at least a 50% decrease in the number of incontinence episodes or pads used daily. Safety was also evaluated. Results: The success rate gradually decreased from 52 patients (87%) at 1 month to 37 (62%) at 5 years. Complete continence persisted in 15% of patients. The system was still used by 80% of patients at 5 years. In 32 patients a total of 57 adverse events occurred, which were not severe (Clavien grade I and IIIb in 61% and 39%, respectively). Conclusions: Sacral neuromodulation appears to be a safe technique for refractory idiopathic urge urinary incontinence in women. The success rate gradually decreased to 62% after 5 years with 15% of patients completely continent.

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