Your browser is out of date
With an updated browser, you will have a better Medtronic website experience. Update my browser now.
Evaluations allow patients to try InterStim™ therapy to assess its efficacy so they can make an educated decision with their physician about whether to proceed with implantation. In general, the evaluation is successful if the patient experiences a significant (50% or greater) reduction in symptoms.
The basic evaluation (also referred to as peripheral nerve evaluation or PNE) is typically used to evaluate patients with bladder control problems. It is initiated through a simple, in-office procedure, during which the lead is placed in the upper buttock.
This lead connects to an external neurostimulator (ENS) that the patient wears on a belt. For approximately 3-7 days (depending on physician guidance) the patient completes a symptom diary that is eventually compared to a baseline (established by using a symptom diary prior to the evaluation).
The advanced evaluation (also referred to as Stage 1) is initiated through an outpatient procedure performed in a hospital or surgical center.
The patient also wears an ENS during the advanced evaluation, which lasts up to 14 days (depending on physician guidance). Symptom diaries are used to measure results.
Complications can occur with the evaluation, including movement of the wire, technical problems with the device, and some temporary pain. Patients should be instructed on operating the test device and given other precautions related to the evaluation as well as activity restrictions.
Medtronic InterStim™ Smart Programmer Configure Implant - (04:25)
InterStim™ Smart Programmer MRI Status - (01:59)
InterStim™ Smart Programmer Check Impedance - (01:33)
InterStim™ Smart Programmer My Therapy App Demo - (04:56)
See how the evaluation works by watching instructional videos.Watch Videos
Follow Medtronic Pelvic Health on Twitter for the latest updates on our products and therapies.FOLLOW US ON TWITTER
The Care Pathway helps visualize the journey to relief, so patients keep moving forward.Access Patient Tools
Learn about all the products used in basic and advanced evaluations.SEE THE SYSTEMS