Clinical Research Directory

Inclusion Criteria: * Patients diagnosed with kidney stones with a size ranging from 20 to 40 millimeters. * Patients have undergone mini-PCNL, unilateral * Absence of urinary tract infections before surgery. * No urological congenital abnormality * No coagulopathy Exclusion Criteria: * Presence of residual stones after the surgery, fragments larger than 4 millimeters. * Patients with a single functioning kidney * Complicated cases, including: 1. massive bleeding in the upper tract during surgery 2. Severe collecting systems injury during surgery 3. Severe UPJ mucosa swelling considered unsafe by the physician, requiring the placement of a DJ stent or nephostomy tube * Participants who decline or request withdrawal from the research study.