Long-Term Follow-Up of Balloon Dilation for Primary Obstructive Megaureter

Abstract

Abstract Introduction: Management of the primary obstructive megaureter (POM) has greatly changed over the past years. In most cases, the conservative management is the first option. Surgical treatment is undertaken when the conservative management fails. The standard treatment is open surgery with ureter reimplantation. The objective of this video is to show the endoscopic dilatation of the POM as an alternative to the standard surgical treatment. Materials and Methods: We use a 10.5F Storz compact cystoscope with a 5F work channel under general anesthesia. A flexible guide is introduced in the ureter, and it is progressed up to the renal pelvis. A 3F–5F balloon catheter is passed over the guide and left positioned above and beneath the area to be dilated (the balloon's position is fluoroscopically controlled). The stenotic segment is dilated by inflating the balloon with a contrast medium up to a pressure of 12–14 atm, and the rupture of the problem area is verified by means of X-rays. A Double-J is lef...