What is already known about this topic?
The effect of presurgical ESWL on the efficacy and safety of semirigid
ureteroscopy was shown in some studies. These studies reported that the
presurgical ESWL did not complicate the semirigid ureteroscopy and did
not increase the complication rate. On the other hand, with the
evolution of technology retrograde intrarenal surgery became a standard
procedure for patients with upper ureter stones. There is a significant
gap in the literature defining the effect of pre-RIRS ESWL on the
efficacy and safety of at RIRS for upper ureter stone treatment.