The main complications of megaureter is urinary tract infection, back pain, ureteral stones and a decline in kidney function. I cannot quote percentages, but yes, it is possible to have kidney failure from this condition.
You may want to discuss with your urologist the best way to evaluate and prevent for this complication. Serial measurement of creatinine and creatinine clearance can be considered.
If there are complications secondary to this, then surgical options are the most likely consideration - ureteral reimplanation can be an option.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
Medical Weblog:
kevinmd_b