Chadbourne D M, Lyon E S
Department of Surgery, University of Chicago, Illinois.
Urology. 1988 May;31(5):395-7. doi: 10.1016/0090-4295(88)90733-9.
Pushing ureteral stones into the renal pelvis significantly facilitates extracorporeal shock-wave lithotripsy or percutaneous nephrolithotripsy. The technique is simple and less hazardous than mechanically relocating the stone with a wire or a catheter. It requires retrograde injection of 2% lidocaine jelly into the ureter via an 8-10F catheter placed just distal to the stone. Of forty-seven ureteral stones (24 upper, 19 mid, and 4 lower ureter), 44 were relocated successfully.