TREATMENT OUTCOMES OF EXTRACORPOREAL SHOCK WAVE LITHOTRIPSY FOR URINARY CALCULI

Abstract

ESWL is considered as a standard treatment for renal calculi less than 20 mms, but the outcome of this therapy depends on different factors including stone composition, stone location, pelvicalyceal anatomy and stone size. This study was conducted to assess the treatment outcomes of patients undergoing ESWL for renal calculi and the factors influencing it. This was a descriptive study conducted in the Department of Urology, Government Medical College,Thiruvananthapuram. The study period was one year and 150 patients were enrolled. Overall success rate of ESWL in our study was 76.7%. Regarding the treatment outcomes our study concluded that the overall success rate of ESWL is 76.7%. But factors like lower calyceal location, skin to stone distance >10 cm, density > 950 HU and size >1.5 cms are associated with failure of fragmentation by ESWL.