Does extracorporeal shock wave lithotripsy before retrograde intrarenal surgery complicates the surgery for upper ureter stone? The results of the RIRSearch group.

Performing ESWL on the proximal ureter stones before RIRS did not change the efficacy and safety of RIRS. The time between the patient's last ESWL session and RIRS had a predictive value for stone-free status, but did not have any effect on complications.