Feasibility and effectiveness of transumbilical single-site laparoscopic pyeloplasty for unilateral UPJO in infants

We aimed to investigate the efficacy and safety of transumbilical single -site laparoscopic pyeloplasty for treating infants aged less than 12 months with Society for Fetal Urology (SFU) Grade IV hydronephrosis due to ureteropelvic junction obstruction (UPJO).