InterStim therapy
Pronunciation: IN-ter-stim
Sacral neuromodulation treatment using an implanted device to stimulate sacral nerves for overactive bladder and urinary retention.
Full Definition
A form of sacral neuromodulation therapy involving implantation of a neurostimulator device that delivers mild electrical pulses to the sacral nerves (typically S3) to treat refractory overactive bladder, urinary retention, and fecal incontinence. The treatment typically involves a two-stage process: an initial test stimulation period using a temporary electrode, followed by permanent implantation if the patient demonstrates significant symptom improvement. The mechanism of action involves modulation of neural pathways controlling bladder and bowel function. Candidates must have failed conservative treatments and demonstrate adequate response during the test phase.
Usage
Usage note: Proprietary name; capitalize appropriately. Specify indication and trial results when documenting.
In Context
- "The patient showed 75% improvement in urgency episodes during InterStim trial, proceeding to permanent implantation." — Device evaluation
- "InterStim therapy was considered for refractory overactive bladder after failed anticholinergic treatment." — Treatment planning