After advancing a 0.035-inch wire guide into the renal pelvis, the tip of the ureteral catheter was advanced into the renal pelvis for contrast imaging.After removing the ureteral catheter, it was replaced with the provided sheath and advanced into the ureter.The stenosis of upf (ureteropelvic junction) was severe and the sheath could not pass through, so its use was discontinued and instead a dj ureteral stent (bd/inlay optima stent set 6fr 26cm) was placed to complete the procedure.No adverse effect on the patient has been reported.
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