IRCT20200825048515N88 IRCT 2026-05-03 Esfahan University of Medical Sciences Comparison of Two Kidney Drainage Tube Placement Methods after Percutaneous Nephrolithotomy: Balloon (with Traction) versus Conventional Method, in Terms of Anemia Severity in Patients with a Solitary Pelvic Stone Comparison of the Effectiveness of Balloon Traction Nephrostomy versus Conventional Nephrostomy Placement in Reducing Hemoglobin Drop in Patients with a Solitary Pelvic Stone Undergoing Percutaneous Nephrolithotomy 2026-06-21 anticipated 130 Pending https://irct.ir/trial/89725 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: In this study, 130 eligible patients are randomly selected. For this, the letter A is written on 65 sheets, and the letter B is written on 65 sheets, and each of them is placed in an envelope. Each patient is then asked to choose one of the envelopes. Depending on the selected envelope, the patient is assigned to one of two groups. 3 Patients with a Solitary Pelvic Stone Undergoing Percutaneous Nephrolithotomy. Intervention 1: Intervention group: At the end of the percutaneous nephrolithotomy (PCNL) procedure, patients will receive a balloon nephrostomy tube placed into the urinary collecting system. This tube will be an 18 Fr Foley catheter with a balloon, which will be inflated with a small volume depending on the renal anatomy. Gentle traction will be applied to the tube, and it will be secured to the skin with a suture. The tube will be kept in place for 24 hours. Intervention 2: Control group: At the end of the percutaneous nephrolithotomy (PCNL) procedure, patients will receive a conventional non‑balloon nephrostomy tube, or if a balloon catheter is used, the balloon will not be inflated. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further information.