Ureteroscopic Removal of Multiple Renal Pelvis and Lower Calyceal Stones / 대한비뇨기과학회지

ABSTRACT

The goal of surgical stone management is to achieve maximal stone clearance with minimal morbidity to the patient. Because of its efficacy, efficiency and low morbidity, extracorporeal shock wave lithotripsy(ESWL) is the first-line treatment for almost all urinary calculi. However, stone clearance after ESWL has been shown to be affected by the stone burden, location, chemical composition and kidney anatomy. Especially, the success rate for ESWL is reduced in lower pole stone(LPS). Percutaneous nephrolithotomy(PNL) and retrograde ureteroscopic intrarenal surgery(RIRS) are alternative treatment options for stones refractory to ESWL such as LPS. Although effective, PNLsubjects the patient to increased morbidity compared to ESWL and RIRS. Because of its low morbidity and relatively high success rate, RIRS for LPS is an attractive treatment modality in selective patients. We report a case of multiple renal pelvis and lower calyceal stones treated with ureteroscopy.