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Laparoscopic pyeloplasty. Indications, technique, and long-term outcome
R N Chen1, R G Moore, L R Kavoussi
1James Buchanan Brady Urological Institute, Johns Hopkins Bayview Medical Center, Baltimore, Maryland, USA.
The Urologic Clinics of North America
|June 20, 1998
Summary
Laparoscopic pyeloplasty offers higher success rates for ureteropelvic junction obstruction compared to less invasive incisional techniques. This minimally invasive approach addresses all obstruction causes, reducing complications and improving patient outcomes.
Area of Science:
- Urology
- Minimally Invasive Surgery
- Surgical Techniques
Background:
- Ureteropelvic junction (UPJ) obstruction can be treated with minimally invasive options, including endoscopic and fluoroscopic methods.
- While less invasive than open pyeloplasty, these incisional techniques have shown lower long-term success rates.
- Potential causes of UPJ obstruction include intrinsic narrowing, kinking from crossing vessels, or fibrotic bands.
Purpose of the Study:
- To evaluate the efficacy and outcomes of laparoscopic pyeloplasty for UPJ obstruction.
- To compare laparoscopic pyeloplasty with other treatment modalities, including open and incisional techniques.
- To highlight the advantages of laparoscopic pyeloplasty in addressing all potential causes of UPJ obstruction.
Main Methods:
- Laparoscopic pyeloplasty addresses intrinsic and extrinsic UPJ obstruction causes.
- Techniques include ureterolysis, dismembered pyeloplasty, and nondismembered (Fenger) pyeloplasty.
- Crossing vessels are managed by transposing the ureter and renal pelvis.
Main Results:
- Laparoscopic pyeloplasty demonstrates higher success rates than incisional techniques, both radiographically and subjectively.
- Estimated blood loss in a series of 57 laparoscopic pyeloplasties was 139 mL, with no transfusions required.
- Hospitalization and convalescence are comparable to antegrade percutaneous endopyelotomy.
Conclusions:
- Laparoscopic pyeloplasty is an effective treatment for UPJ obstruction, addressing all obstruction etiologies.
- It offers superior success rates compared to incisional techniques with reduced hemorrhage risk.
- Proficiency in laparoscopic techniques and longer operative time are necessary considerations.