Objective: This is a retrospective study to compare duplex scan results of laparoscopic Palomo’s technique through retroperitoneal and transperitoneal approach for varicocelectomy in children. We statistically analyzed recurrence, testicular volume growth and complications. Patients and methods: Surgical intervention was performed utilizing transperitoneoscopic (group A) or retroperitoneoscopic access (group B). Duplex scan control was performed after 12 months (T1), after 2 years (T2) and the last one at 18 years old in most patients. Statistical analysis was performed using the t-test for parametric data. Differences in proportions were evaluated using c2 or Fisher’s exact test. Results: We treated 120 children (age range 10e17 y...