Pyeloplasty (Surgery for UPJ Obstruction)

Pyeloplasty is a surgical procedure performed to correct Ureteropelvic Junction (UPJ) obstruction, a condition where urine flow from the kidney to the ureter is blocked. This blockage can cause kidney swelling, pain, infection, and reduced kidney function. Pyeloplasty restores normal urine drainage by removing the narrowed segment and reconnecting the healthy ureter to the kidney. It can be performed using open, laparoscopic, or robotic techniques.

Pyeloplasty Surgical Procedure

Pyeloplasty is performed under general anesthesia by an experienced urologist. The goal of surgery is to remove the obstructed segment of the ureter and create a wide, smooth connection between the kidney pelvis and ureter to allow free urine drainage. A temporary stent is usually placed to support healing.

The procedure may be done using open surgery, laparoscopy, or robotic-assisted techniques, depending on patient condition and surgeon expertise.

Steps of Pyeloplasty

Pyeloplasty follows a precise, step-by-step surgical approach to ensure effective correction of obstruction.

Anesthesia and Patient Positioning
The patient is placed under general anesthesia and positioned to allow safe access to the kidney and ureter.
Surgical Access
Access to the kidney is gained through an open incision or small keyhole incisions in laparoscopic or robotic pyeloplasty.
Identification of UPJ Obstruction
The narrowed or blocked ureteropelvic junction is carefully identified and exposed.
Removal of Obstructed Segment
The diseased or narrowed portion of the ureter is removed to eliminate the blockage.
Reconstruction of UPJ
The healthy ureter is reattached to the kidney pelvis using fine sutures to create a wide, smooth passage for urine flow.
Placement of Ureteric Stent
A temporary double-J (DJ) stent is placed to keep the passage open and support healing.
Closure of Surgical Site
The surgical area is closed carefully, and drainage tubes may be placed if required.

Benefits of Pyeloplasty

Recovery After Pyeloplasty

Most patients recover well after pyeloplasty. Hospital stay usually ranges from 2–5 days depending on the surgical method. Light activities can be resumed within 1–2 weeks, while complete recovery may take 3–4 weeks. The ureteric stent is removed after a few weeks.

Success Rate of Pyeloplasty

Pyeloplasty has a very high success rate (over 90%) in relieving obstruction and preserving kidney function, especially when performed using minimally invasive or robotic techniques.

When Is Pyeloplasty Required?

Pyeloplasty is recommended when imaging tests show UPJ obstruction causing pain, hydronephrosis, recurrent infections, or declining kidney function, and when conservative treatment is not effective.

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What is pyeloplasty and why is it done?
Pyeloplasty is a surgical procedure used to treat ureteropelvic junction (UPJ) obstruction, a blockage between the kidney and ureter. It is done to restore normal urine flow, relieve pain, reduce kidney swelling, and prevent long-term kidney damage.
Is pyeloplasty a major surgery?
Pyeloplasty is considered major surgery, but it is commonly performed using minimally invasive laparoscopic or robotic techniques. These modern methods result in smaller incisions, less pain, shorter hospital stay, and faster recovery compared to open surgery.
How long does recovery take after pyeloplasty?
Most patients recover within 3 to 4 weeks after pyeloplasty. Light activities can usually be resumed within 1 to 2 weeks. A temporary ureteric stent is often placed and removed after a few weeks during follow-up.
What is the success rate of pyeloplasty?
Pyeloplasty has a very high success rate, usually over 90%. It effectively relieves obstruction, improves urine drainage, and preserves kidney function in the long term when performed by an experienced urologist.