Ureteral Stenting

Ureteral stenting is one of the most commonly performed urological procedures worldwide, serving as a vital intervention for restoring or maintaining urinary flow from the kidney to the bladder. When the ureter becomes blocked due to stones, strictures, tumors, trauma, or postoperative swelling, urine cannot drain properly. This obstruction can quickly lead to pain, infection, kidney swelling (hydronephrosis), and long-term renal damage. A ureteral stent, typically a thin, flexible tube with curled ends, helps bypass the blockage and ensures continuous drainage.

At MedicalPoint Hospital, ureteral stenting is performed using state-of-the-art urologic technology by expert urologists who prioritize safety, precision, and patient comfort. Whether used as an emergency measure, postoperative support, or part of a long-term management plan, ureteral stenting plays a crucial role in protecting urinary tract health.

What Is Ureteral Stenting?

A ureteral stent is a small, biocompatible tube—usually made of polyurethane or silicone—inserted into the ureter to maintain patency and allow urine to pass from the kidney to the bladder. The stent’s characteristic “double-J” design, with curled ends at both the renal pelvis and bladder, helps keep it securely in place.

Ureteral stents are used in a wide range of clinical situations, including obstruction from kidney stones, ureteral narrowing due to scar tissue, compression from tumors, or swelling after urologic surgeries. In many cases, stents are temporary and remain in place only until the underlying condition is resolved, though some patients may require long-term or even permanent stenting under special circumstances.

When Is a Ureteral Stent Placed?

Ureteral stents are indicated whenever urine flow is mechanically or functionally impeded. Obstruction can arise abruptly, such as from an impacted kidney stone, or gradually, as in progressive ureteral stricture disease.

1. Kidney Stones

One of the most common reasons for stent placement is obstruction caused by stones lodged in the ureter. A stone can block the ureter completely or partially, leading to severe pain (renal colic), infection, and hydronephrosis. A stent relieves pressure, protects kidney function, and may be used:

• Before stone removal surgery

• After ureteroscopy

• When infection is present and emergency decompression is needed

2. Ureteral Strictures

Strictures are narrowings that restrict urine flow and often result from:

• Scar tissue

• Chronic inflammation

• Previous surgeries

• Congenital anomalies

Stents maintain patency while definitive treatments—such as balloon dilation or reconstructive surgery—are planned.

3. Tumors

Benign or malignant tumors may compress or invade the ureter. These include:

• Bladder cancer

• Cervical cancer

• Prostate cancer

• Retroperitoneal masses

Stents relieve obstruction and may be combined with oncological therapies.

4. Post-Surgical Management

After urologic procedures such as ureteroscopy, pyeloplasty, or ureteral reconstruction, stents are often placed to:

• Reduce swelling

• Support healing tissues

• Prevent postoperative obstruction

5. Infection, Trauma, or Severe Inflammation

In cases of complicated urinary tract infections or traumatic ureteral injury, stents help maintain drainage during the healing process.

The duration of placement varies widely—from several days to several weeks or months—depending on the cause of obstruction and the patient’s treatment plan.

How Is a Ureteral Stent Placed?

Ureteral stent placement is a minimally invasive procedure performed using cystoscopy. At MedicalPoint Hospital, the procedure is performed with high-definition endoscopic systems that enhance visibility and precision.

1. Anesthesia

The patient may receive:

• Local anesthesia

• Sedation

• Spinal anesthesia

• General anesthesia (in complex cases)

2. Cystoscopic Access

A thin scope is inserted through the urethra into the bladder. Once the ureteral opening is located, a guidewire is advanced into the ureter.

3. Stent Insertion

The stent is threaded over the guidewire and gently advanced up into the kidney. Once correctly positioned:

• The upper coil settles in the renal pelvis

• The lower coil rests securely in the bladder

4. Verification

Fluoroscopy or endoscopic visualization confirms proper placement. The procedure typically takes 10–20 minutes.

Patients may go home the same day or stay briefly for monitoring depending on their condition.

How Is a Ureteral Stent Removed?

Stent removal is typically much quicker and simpler than placement.

Removal Procedure

• A flexible cystoscope is inserted through the urethra under local anesthesia.

• The stent is identified and grasped using specialized forceps.

• It is gently withdrawn in seconds.

Duration

Removal usually takes less than five minutes.

Patient Experience

Patients may feel:

• Mild discomfort

• Temporary burning during urination

• Slight bleeding
  These symptoms usually resolve within 24–48 hours.

Post-Removal Monitoring

Patients are advised to:

• Drink plenty of fluids

• Report fever or severe pain

• Follow up for imaging if underlying obstruction was severe

Benefits of Ureteral Stenting

1. Immediate Relief of Obstruction

By restoring drainage, stents prevent kidney damage, reduce pain, and improve urinary flow.

2. Protection Against Hydronephrosis

Hydronephrosis can lead to irreversible kidney injury. Stents stop this process early.

3. Minimally Invasive

Placement and removal do not require incisions or major surgery.

4. Essential Support After Urologic Procedures

Stents help reduce swelling, protect surgical repairs, and ensure successful healing.

5. Safe for High-Risk Patients

Patients who are not candidates for open surgery due to age or comorbidities often tolerate stenting well.

Potential Risks and Complications

While generally safe, ureteral stenting may cause:

1. Urinary Symptoms

• Frequency

• Urgency

• Burning sensation

• Bladder spasms

These are common and usually manageable.

2. Hematuria

Small amounts of blood in the urine are normal after placement or removal.

3. Urinary Tract Infection

Infection risk is minimized with sterile technique and may require antibiotics if symptoms develop.

4. Stent Migration

Rarely, the stent may shift; this can be corrected endoscopically.

5. Encrustation

If left too long, mineral deposits can accumulate, complicating removal. This underscores the importance of timely follow-up.

6. Pain or Flank Discomfort

Some patients experience discomfort from ureteral irritation, often relieved with medication.

Living with a Ureteral Stent

Most patients can resume normal daily activities. However, they may experience:

• Intermittent flank pain

• Bladder pressure

• Slight discomfort during exercise

Tips for comfort:

• Drink plenty of water

• Avoid heavy lifting

• Use NSAIDs or antispasmodic medications if prescribed

Patients should immediately report:

• Fever

• Severe pain

• Inability to urinate

• Heavy bleeding

Follow-Up and Long-Term Care

At MedicalPoint Hospital, follow-up includes:

• Ultrasound or CT to ensure proper drainage

• Regular monitoring for infection

• Scheduled stent removal before encrustation begins

Patients requiring long-term stents—such as those with chronic malignant obstruction—receive specialized care, including periodic stent exchanges or evaluation for metallic or nephroureteral stents.

Conclusion

Ureteral stenting is a vital, minimally invasive tool in modern urology, offering rapid relief from obstruction and protecting kidney function in both emergency and planned settings. Whether used for kidney stones, strictures, tumors, or postoperative support, stents ensure effective urine drainage and prevent potentially severe complications.

At MedicalPoint Hospital, ureteral stent placement and removal are performed using advanced technology and meticulous technique to maximize comfort, safety, and clinical success. With proper monitoring and expert guidance, ureteral stenting remains a safe and highly effective treatment for a wide range of urinary tract conditions.