Laparoscopic pyeloplasty: history, evolution, and future

Ureteropelvic junction (UPJ) obstruction is characterized by a functionally significant impairment of urinary transport caused by obstruction in the area where the ureter joins the renal pelvis. The majority of cases are congenital; however, acquired conditions at the level of the UPJ may also present with symptoms and signs of obstruction. Until recently, open pyeloplasty and endoscopic techniques have been the main surgical options with the intent of complete excision or incision of the obstruction. The introduction of laparoscopy has allowed minimally invasive reconstructive surgery that mirrors open surgical techniques. In the hands of experienced surgeons, laparoscopic pyeloplasty offers a less invasive alternative to open surgery with decreased morbidity, shorter hospital stay, and faster convalescence. During the last decade, laparoscopic pyeloplasty for the treatment of congenital or acquired UPJ obstruction has garnered much interest, but, as this procedure is technically challenging, it is being performed only at selected medical centers by surgeons with advanced laparoscopic training. This review describes the early results, ongoing evaluation, and future role for this novel surgical procedure.