The majority of upper third ureteral stones that do not pass spontaneously can be ad- dressed effectively by either ESWL
or retrograde ureteroscopy. The former is less invasive, and is the first line of treatment for most cases, but the latter offers a greater chance of complete stone removal in one sitting.
Laparoscopic and open surgical ureterolithotomy should be reserved for special circumstances, such as anatomical abnormality requiring concomitant surgical intervention.
can be damaged in long run,if stone is not removed.
Since the stone is in one kidney,it can result in kidney damage but not kidney failure ( which occurs when both kidneys are damaged ) .