Pyeloplasty
Surgical reconstruction of the ureteropelvic junction to correct obstruction and preserve kidney function, often performed laparoscopically in children.
Full Definition
Pyeloplasty is the surgical reconstruction of the ureteropelvic junction (UPJ) to correct obstruction that impairs urine flow from the renal pelvis to the ureter. This condition is the most common cause of antenatal hydronephrosis and may present with flank pain, urinary tract infections, or declining kidney function. The dismembered Anderson-Hynes pyeloplasty is the gold standard, involving excision of the obstructed segment and spatulated reanastomosis. Laparoscopic and robot-assisted approaches offer excellent outcomes with reduced morbidity. Success rates exceed 95%, with resolution of hydronephrosis and preserved renal function.
Usage
Usage note: Always specify the surgical approach (open, laparoscopic, or robotic) and type of pyeloplasty performed.
In Context
- "Laparoscopic pyeloplasty was performed for severe UPJ obstruction with declining differential function." — Pediatric urology surgical plan
- "The dismembered pyeloplasty resulted in complete resolution of hydronephrosis at 6-month follow-up." — Postoperative imaging report