The purpose of this study is to evaluate whether actively suctioning the renal collecting system to induce a "collapse" state at the end of retrograde intrarenal surgery (RIRS) can reduce postoperative pain and infection in patients with kidney stones. Participants will be randomly assigned to either the experimental group (suction-induced collapse) or the control group (standard drainage). The study aims to determine if this simple surgical modification can improve early recovery outcomes and patient satisfaction.
Patients aged 20 to 80 years.
Patients diagnosed with kidney stones and scheduled for retrograde intrarenal surgery (RIRS).
Patients who have voluntarily signed the written informed consent form
Participation in another clinical trial (drug or device) within 1 month prior to enrollment.
Congenital abnormalities of the urinary or reproductive system.
Presence of a pre-placed ureteral stent (pre-stenting) at the time of surgery.
Solitary kidney.
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