Evaluation of Different Treatment Modalities for Lower Pole and Renal Pelvis Stones

Inclusion Criteria: * Patients planned to undergo either conventional PCNL, mini PCNL, ultra-mini PCNL, micro PCNL, RIRS or ESWL due to kidney stone(s) * Patients between 18 and 70 years old Exclusion Criteria: * Patients with unregulated diabetes mellitus and diabetic nephropathy * Patients with a blood pressure higher than 140/80 mmHg despite use of antihypertensive drug(s) regularly * Patients with chronic renal failure who need dialysis * Patients who had prerenal, renal or postrenal acute kidney failure during the last 6 months * Patients who had acute pyelonephritis during the last 6 months * Patients younger than 18 years old or older than 70 years old * Patients who had kidney surgery during the last 3 months and who have abnormal kidney functions * Patients with ureteral stone who are planned to undergo endoscopic stone treatment at the same time * Patients with a history of corticosteroid use during enrollment into the study or previous 3 months * Patients with uncontrolled thyroid disease * Patients who have a disease with rapid cell turn-over (like leukemia, lymphoma, etc.) * Patients in whom PCNL/RIRS/ESWL cannot be performed due to any reason and the procedure is terminated * Patients who are converted to open surgery due to any reason * Patients with missing data