Laparoscopic pyeloplasty: a prospective randomized comparison between the transperitoneal approach and...

Area of Science:

• Urology
• Minimally Invasive Surgery
• Surgical Outcomes

Background:

• Ureteropelvic junction (UPJ) obstruction is a common cause of pediatric and adult kidney issues.
• Pyeloplasty is the gold standard surgical repair for UPJ obstruction.
• Laparoscopic techniques have become increasingly utilized for pyeloplasty.

Purpose of the Study:

• To compare transperitoneal and retroperitoneal laparoscopic approaches for dismembered Anderson-Hynes pyeloplasty.
• To evaluate operative time, morbidity, hospital stay, convalescence, and functional outcomes.

Main Methods:

• A prospective randomized study included 40 patients with primary UPJ obstruction.
• Patients were randomized to transperitoneal (n=20) or retroperitoneal (n=20) laparoscopic pyeloplasty.
• Preoperative and postoperative assessments included imaging (urography, renography, CT angiography) and clinical follow-up.

Main Results:

• Both laparoscopic approaches were successfully completed.
• Mean operative times were 149 minutes (transperitoneal) and 189 minutes (retroperitoneal) (p=0.02).
• No significant differences were observed in morbidity, hospital stay, convalescence, or success rates between the groups.

Conclusions:

• Laparoscopic dismembered Anderson-Hynes pyeloplasty yields satisfactory functional outcomes and low morbidity.
• The choice of surgical approach (transperitoneal vs. retroperitoneal) does not significantly impact long-term results.
• Retroperitoneoscopy may be associated with a longer operative time, particularly in early experience.