Minimally invasive open dismembered pyeloplasty technique: Miniature incision, muscle-splitting dissection, and nopelvis reduction in children

Abstract Objective To report the outcomes and complications of open dismembered Anderson-Hynes pyeloplasty with miniature incision in treating children's ureteropelvic junction obstruction. Methods Between March 2007 and April 2011, 109 children with a mean age of 2 years and 8 months old with ureteropelvic junction obstruction underwent open dismembered pyeloplasty. Clinical manifestations, radiographic assessments, incision size, surgery time, hospital stay, and complication rate were recorded. All patients had a documented ureteropelvic junction obstruction (having T1/2 more than 20 min in diethylenetriaminepentaacetic acid (DTPA) scan) with symptomatic stenosis or decreased kidney function (differential function Results Mean surgery time was 52 min (47–60 min). Incision size was 18–28 mm. Mean hospital stay was 3 days (2–8 days). The surgery was successful in 98.2% of patients with a mean follow-up time of 36 months (success was defined as disappearance of symptoms, if present, with improved ultrasound imaging results or Reno graphic parameters). The complication rate was 7.33%, including urinary leakage, double-J urethral stent dislocation and infection. Conclusion Open dismembered pyeloplasty is a safe, technically feasible and effective therapy in treatment of children's ureteropelvic junction obstruction. It takes a short time to do, requires a small incision and has few complications and a short recovery period.