Ureteropelvic Junction Obstruction

Ureteropelvic Junction (UPJ) Obstruction is an obstruction of the ureter at the junction where it attaches to the kidney, see the below image. Many times due to the narrowing, the kidney becomes “swollen.”

A common term used to describe this swollen kidney is hydronephrosis. There are multiple causes. Some patients have this from birth. Sometimes it can be caused from physiologic changes from kidney stones, infections or disorders that cause inflammation.

Treatment Options

Open Pyeloplasty

Open Pyeloplasty is a surgical treatment for UPJ obstruction that is performed through an incision in the flank. Once the kidney and blocked ureter are identified, the blocked part of the ureter is cut out. The remaining healthy ureter is reattached to the kidney.

A ureteral stent is placed to allow healing. The stent is left in place for up to four weeks. At that time, you will have a cystoscopy in the office, and the surgeon will remove the stent. This procedure is brief. Patients typically experience minimal discomfort.

Robot-Assisted Laparoscopic Pyeloplasty

Robot-Assisted Laparoscopic Pyeloplasty is a treatment for a UPJ obstruction. Learn more about robot-assisted laparoscopic pyeloplasty.