IRCT20160406027253N2 IRCT 2023-10-02 Shahid Beheshti University of Medical Sciences A clinical trial to compare the amount of bleeding and surgical complications of percutaneous nephrolithotomy in a group that had a balloon nephrostomy compared to a normal nephrostomy Comparison of blood loss and complications in patients underwent percutaneous nephrolithotomy with balloon traction of nephrostomy and conventional methods: a randomized clinical trial 2023-10-02 anticipated 102 Complete https://irct.ir/trial/72773 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The randomization process has already been done by Stata software, and the number of patients has been divided into binary and quadruple blocks by using the Random allocation command in Stata, and the patient number and the group in which the random allocation is placed in the sealed envelopes. At the end of the operation, the envelopes are opened and based on the contents of the envelope, a normal nephrostomy or a balloon nephrostomy is placed inside the pelvis and the balloon is filled a little and then traction is applied on the skin to put pressure on the calyx of the access site, Blinding description: Equality of nephrostomy ends outside body ensures the unawareness of participants to allocation groups. N/A kidney stone. Intervention 1: Intervention group: In the intervention group, a balloon nephrostomy was placed under fluoroscopy at the infundibulum entrance of the access site from the pelvic side, and tamponade was performed on the calyx of the access site with brief traction on the balloon. Intervention 2: Control group: In the control group, which is the control group, the nephrostomy point was inserted in the conventional way. Then the hemoglobin drop and complications in these two groups were compared. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is .upon request of the publishing journal is publishable