Ureteroscopic holmium laser endopyelotomy for ureteropelvic junction stenosis after pyeloplasty.

Introduction: Pyeloplasty is a standard and highly successful treatment for ureteropelvic junction obstruction. However, stenosis is a late complication causing symptom recurrence. The purpose of this study was to evaluate the use of holmium laser stenosis incision-"laser endopyelotomy"-to manage this.