Sacral Anterior Root Stimulation for Bladder Control: Clinical Results

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Abstract
The Brindley bladder stimulator delivers intermittent stimulation to the anterior sacral roots. The stimulus parameters can be adjusted and set specifically for individuals. Its primary purpose is to improve bladder emptying, thereby to eliminate urinary infection and to preserve kidney function. It also assists in defecation and enables male patients to have a sustained full erection. In our unit so far 38 patients with a complete spinal cord lesion have received a Brindley bladder stimulator implant. One patient died 2 weeks after the surgery due to pulmonary embolism. Two other patients died due to unrelated causes during the follow up period. They used their implants for less than 1 year. Results relating to these 2 patients and the remaining 35 patients who regularly use their implant are presented. The follow-up period ranged from 3 months to 12 years. Residual urine volumes are substantially reduced in all patients; in 24 patients the residual urine volume is less than 30 ml. All patients have incr...