An ultrasound performed at the referring hospital showed mild hydronephrosis in the right kidney and absent left kidney ... laparoscopic pyeloplasty was scheduled as an urgent elective procedure.

The main surgical options for treatment of UPJ obstruction in a functioning kidney include open or laparoscopic pyeloplasty and endopyelotomy performed in an antegrade or retrograde fashion.

Rufus Quinn, from Streatham, south London, had a robotic assisted pyeloplasty ... in 1,500 children and if left untreated can cause pain and increase the risk of kidney function deterioration.