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Sacral Neuromodulation (InterStim)

Sacral nerve stimulation for overactive bladder and urinary incontinence.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Üroloji department. Book Appointment →

What is Sacral Neuromodulation (InterStim)?

Sacral neuromodulation (SNM) is an implantable neurostimulation therapy that regulates bladder function by electrically stimulating the S3 sacral nerve root. InterStim (Medtronic) is the most commonly used device.

A two-stage approach is used: first, test stimulation (1-2 weeks) is performed to evaluate the patient's response; if there is more than 50% symptom improvement, a permanent generator is implanted.

It is indicated in patients with overactive bladder (OAB), urge incontinence, non-obstructive urinary retention, and chronic fecal incontinence who do not respond to medical therapy.

Symptoms

Overactive bladder (refractory to medical therapy)
Urge urinary incontinence
Non-obstructive idiopathic urinary retention
Chronic fecal incontinence
Interstitial cystitis/painful bladder syndrome

Risk Factors

Lead migration (5-10%)
Infection (2-5%)
Pain at the implant site
Device malfunction
MRI compatibility limitations (resolved with newer devices)

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • If overactive bladder does not respond to medication
  • If urinary incontinence severely impairs daily quality of life
  • In non-obstructive retention with catheter dependency
  • If pain or loss of effectiveness develops after device implantation

Treatment Methods

01
Test phase stimulation (1-2 weeks evaluation)
02
Permanent SNM generator implantation (after successful test)
03
Device programming and setting optimization
04
Battery life monitoring and generator replacement when needed
05
Intradetrusor botulinum toxin injection (alternative)

Which Department to Visit?

You can visit our Üroloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.