Role of Urine PH in Shock Wave Lithotripsy Outcomes in Renal Stone Disease

urolethiasis (kidney stones) is common globally, with recurrence in 50% of patients. * Shock Wave Lithotripsy (SWL) is a minimally invasive treatment for stones \< 2 cm. * Hypothesis: Urine pH might influence SWL success and could be manipulated pre-procedure. Aim of the work is to evaluate the role urine pH on the outcomes of shock wave lithotripsy in renal stones. patients and methods The study will be conducted over 146 patients( with single renal stone \< 2 cm) in Urology department of Banha university Hopitals from Dec 2025 till Dec 2026. Exclusions: patients on pH altering drugs, multiple stones,stents. Procedure: SWL Siemens Lithoscope up to 3 sessions per patient. Data collected : Age, BMI, urine pH, specific gravity(SG), stone size, location, Hounsfield unit(HU), skin to stone distance (SSD). Analysis Chi-square\& t-test; significance at p\<0.05. Results Will be tabulated and statistically analyzed