Percutaneous Trial of InterStim™ Sacral Neuromodulation in Tustin, CA | Prestige Medical Group
InterStim™ Percutaneous Trial · Tustin, CA

Try InterStim™ before you commit

A simple, in-office test that lets you experience sacral neuromodulation therapy for 3 to 7 days before deciding whether to move forward with a permanent implant. For people struggling with overactive bladder symptoms not improving with medications.

~20 minute procedure
In-office, no hospital
Reversible & temporary
Drive yourself home
Sacral Neuromodulation

What is InterStim™ therapy?

InterStim™ is a type of sacral neuromodulation — a therapy that uses gentle electrical stimulation to regulate the nerves that control the bladder. When those signals aren’t working properly, it can cause the urgency, frequency, and leakage of overactive bladder. InterStim helps “reset” those signals to improve bladder control.

The sacral nerves play a key role in:

Bladder storage Urinary urgency Bladder emptying
A Test Run Before Committing

What is the percutaneous trial?

The percutaneous trial — also called a PNE trial — is a short-term test that lets you actually try InterStim therapy before moving forward with a permanent implant. Thin temporary wires are placed near the sacral nerves and connected to a small external control device you’ll wear during the trial period.

Will this treatment work for you?
Am I a Candidate?

You may be a candidate if

The percutaneous trial is most appropriate for people whose OAB symptoms haven’t been adequately controlled by conservative treatments.

Urinary urgency

Sudden, intense urges to urinate

Frequent urination

Going far more often than normal

Urge incontinence

Leakage before reaching the bathroom

OAB unresponsive to meds

Bladder medications haven’t given enough relief

Med intolerance

Unable to tolerate bladder medications due to side effects

Note: This trial is typically recommended after conservative treatments — such as lifestyle modifications, pelvic floor exercises, and oral medications — have not provided adequate relief.

At a Glance

The essentials

~20 minutes

Procedure time. About 1 hour total appointment.

Local anesthesia

Lower back numbed — well tolerated

No prep needed

No special preparation beforehand

Drive yourself

No sedation — drive yourself home

Step by Step

What to expect during the procedure

The procedure is performed in-office and well tolerated.

01

Position

You’ll lie comfortably on your stomach.

02

Local anesthesia

Skin on the lower back is numbed.

03

Find the nerve

A small needle identifies the sacral nerve.

04

Wires placed

A thin wire is placed on each side near the nerve.

05

Connect device

Wires connect to a small external control device.

The Trial Period

3 to 7 days at home

Wires stay external and connect to a small control device. You go home the same day.
Track your symptoms during the trial — urgency, frequency, and any leakage episodes.
Take antibiotics as prescribed throughout the trial to reduce infection risk.
You and your provider evaluate together how well the therapy is improving your symptoms.
During the Trial

How it feels & works

What It Feels Like

A gentle pulsing sensation

Most patients describe it as a mild pulsing or tingling sensation
It’s comfortable and adjustable to your preference
The goal is gentle nerve modulation, not discomfort
How We Know It’s Working

A clear, measurable benchmark

Reduced urgency
Fewer bathroom trips
Decreased leakage episodes
Improved quality of life
50%+
Improvement = Successful Trial
Why a Trial First

Benefits of the percutaneous trial

Testing first lets you make an informed decision — you’ll know whether the therapy works for you before committing to anything permanent.

Minimally invasive

A simple in-office procedure with no surgery required

No incisions

Wires placed through small needle insertion — nothing to suture

Quick procedure

About 20 minutes in the office — total visit about 1 hour

No downtime

Go home the same day and drive yourself — no recovery needed

Reversible

Temporary by design — wires are easily removed in-office

Avoid unnecessary surgery

Find out if it works before committing to a permanent implant

Are There Any Risks?

A very safe procedure, with rare exceptions

The procedure is very safe, but as with any procedure, potential risks may include:

Mild discomfort at the insertion site
Temporary soreness in the lower back area
Infection (rare; minimized with antibiotics)
Wire displacement during the trial period

Your provider will review all risks with you and answer any questions before the procedure.

Frequently Asked Questions

Your questions, answered

Is the procedure painful?
Most patients experience minimal discomfort due to the local anesthesia applied before the procedure begins.
Do I need to prepare beforehand?
No preparation is required. Eat, drink, and take your medications normally. Just show up at your scheduled appointment time.
Can I drive myself home?
Yes. Because no sedation is used, you may drive yourself to and from the procedure.
How long does the trial last?
The trial period typically lasts 3 to 7 days. Your provider will give you specific instructions on when to return for evaluation.
What happens to the wires after the trial?
The wires are easily removed in the office at the end of the trial period. The removal process is quick and well tolerated.
Will insurance cover this?
Many insurance plans cover InterStim trials for appropriate candidates. Our team can help verify your benefits before the procedure.

Ready to find real relief?

If overactive bladder is disrupting your daily life and medications haven’t been enough, the InterStim percutaneous trial offers a low-risk way to find out whether sacral neuromodulation could help — before any commitment.