Stent and Catheter Applications

Prof. Dr. Abdulmuttalip Şimşek

Stent and Catheter Applications

Ureteral stents and bladder catheters are supportive urological devices used to relieve obstructions in the urinary tract or to safely ensure urine flow after surgery.

These systems ensure that urine is transmitted continuously and safely from the kidney to the bladder and from the bladder to the outside.

What Is a Ureteral Stent?

A ureteral stent (Double-J stent) is a thin, flexible tube placed in the ureter between the kidney and the bladder.

Its main purpose:

  • To keep the urine flow open
  • To bypass the obstruction
  • To prevent the kidney from remaining under pressure

Areas of Use for a Ureteral Stent

  • Stone-related obstructions
  • Ureteral strictures
  • Ureteral edema (post-operative swelling)
  • Support after endoscopic stone breaking
  • Healing support after ureteral surgeries

What Is a Bladder Catheter?

A bladder catheter is a thin tube that allows urine to be emptied out of the bladder.

Its main purpose:

  • Controlled emptying of urine
  • Relieving the bladder
  • Urine monitoring after surgery

Areas of Use for a Bladder Catheter

  • Urine drainage after surgery
  • Acute urinary retention (inability to urinate)
  • Intensive care patients
  • Situations requiring monitoring of bladder function

How Do They Work?

Ureteral stent:

  • Provides urine flow from the kidney to the bladder
  • “Bypasses the obstruction internally”

Bladder catheter:

  • Empties the urine in the bladder to the outside
  • Urine is collected in a bag

Advantages

1. It protects the kidney

  • Prevents an increase in pressure
  • Protects kidney function

2. It ensures urine flow

  • Drainage continues even if there is an obstruction

3. It provides post-operative support

  • Facilitates the healing process

4. It is a fast and effective solution

  • Can be life-saving in emergencies

Possible Side Effects

Ureteral stent:

  • Burning when urinating
  • Frequent urination
  • Flank pain
  • Mild bleeding

Bladder catheter:

  • Feeling of discomfort
  • Risk of infection
  • Irritation with long-term use

Duration of Use

  • Ureteral stent: usually temporary (weeks
    to months)
  • Bladder catheter: short or medium term according to need

Frequently Asked Questions

In some patients there can be mild flank pain and discomfort when urinating.

It is usually removed after the obstruction has resolved or after post-operative healing is complete.

In short-term use, yes, but there may be some restrictions in daily life.

Yes, care should be taken especially with long-term use.

Clinical Summary

Ureteral stents and bladder catheters are the basic urological support systems used to overcome obstructions in the urinary tract and to ensure urine flow. Especially in stone diseases, post-operative periods and acute obstructions, they provide safe drainage while protecting kidney function.

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