Focus of the Report: This report focuses on sacral nerve stimulation (SNS) for non-obstructive urinary retention (NOUR). The goal of this treatment is to improve bladder emptying.
Technology Description: SNS relies on implantation of a programmable device that applies low-level electric current to improve control of the nerves, muscles, and reflexes affecting bladder emptying. Typically an outpatient procedure, patients first undergo percutaneous insertion of SNS device electrodes as a trial run, and those patients who demonstrate an adequate response undergo permanent surgical implantation of the pulse generator.
Controversy: Sacral neurostimulation requires surgery to implant a stimulator, its mechanism of action is not entirely understood, and it does not always provide complete relief of NOUR.
Key Questions:
Does SNS improve bladder emptying in patients who have NOUR that has not responded adequately to conservative treatment?
How does SNS compare with clinical alternatives for the treatment of NOUR?
Is SNS associated with any safety issues in patients who have NOUR?
Have definitive patient selection criteria been established for SNS for NOUR?
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