Pyeloplasty
Procedure Overview
Pyeloplasty is surgery to repair a ureteropelvic junction (UPJ) obstruction — a blockage at the point where the kidney connects to the ureter — which is one of the most common causes of hydronephrosis. It's most often performed laparoscopically or with robotic assistance.
Who Needs It
Pyeloplasty is recommended for patients with a confirmed UPJ obstruction causing symptomatic hydronephrosis or declining kidney function.
Preparation
Preparation includes a renogram or CT scan to confirm the obstruction and assess kidney function, blood tests, and fasting before anesthesia.
Step-by-Step Procedure
Anesthesia
General anesthesia is administered.
15–20 minPort Placement
Small laparoscopic ports are placed to access the kidney and ureter.
15 minExcision of Obstructed Segment
The narrowed portion of the junction is removed.
45–60 minReconstruction
The kidney and ureter are rejoined to restore normal drainage.
45–60 minStent Placement
A temporary internal stent supports the repair while it heals.
10 minBenefits
- ✓High long-term success in relieving obstruction
- ✓Minimally invasive laparoscopic approach
- ✓Preserves kidney function when performed in a timely manner
Recovery Timeline
Hospital stay is typically 2–4 days. The internal stent is removed a few weeks later, with return to normal activity within 4–6 weeks.
Technology Used
Laparoscopic / Robotic-Assisted Surgical System
Cost & Insurance
- • Surgical approach (laparoscopic vs robotic)
- • Length of hospital stay
Related Conditions
Frequently Asked Questions
Hydronephrosis is swelling of the kidney from urine that can't drain properly due to a blockage further down. When should I consult Dr. Raju R?
Sudden hydronephrosis causes severe flank pain; gradual cases can be silent and found incidentally on a scan. When should I consult Dr. Raju R?
Common causes include kidney stones, strictures, an enlarged prostate, tumors, or, in children, a congenital narrowing. When should I consult Dr. Raju R?
Ultrasound detects the swelling; CT, MRI, or a renogram scan pinpoint the cause and check kidney function. When should I consult Dr. Raju R?
Treatment relieves the blockage, sometimes urgently with a DJ stent, then treats the specific cause, such as a stone or stricture. When should I consult Dr. Raju R?