pyeloplasty
Pronunciation: pahy-uh-loh-plas-tee
Surgical procedure to repair ureteropelvic junction obstruction by reconstructing the connection between kidney and ureter.
Full Definition
Pyeloplasty is the gold standard surgical treatment for ureteropelvic junction obstruction, involving excision of the obstructed segment and reconstruction of a wide, tension-free anastomosis between the renal pelvis and ureter. The procedure can be performed through open, laparoscopic, or robot-assisted approaches, with success rates exceeding 95% in experienced hands. During pyeloplasty, crossing vessels are transposed, redundant pelvic tissue may be reduced, and a spatulated ureteroneocystostomy is created to ensure optimal drainage. The surgery typically includes placement of a temporary ureteral stent or nephrostomy tube. Recovery involves monitoring for complications such as urine leak, stricture formation, or persistent obstruction, with follow-up imaging to confirm restoration of normal drainage patterns.
Usage
Usage note: May be qualified by approach (open, laparoscopic, robot-assisted) in operative reports.
In Context
- "Robot-assisted pyeloplasty was performed with excellent visualization of the ureteropelvic junction." — Operative report
- "Post-pyeloplasty imaging demonstrated resolution of hydronephrosis and improved renal function." — Follow-up note