Ultrasonographic Assessment of the Outcomes and Complications of Extracorporeal Shock Wave Lithotripsy Treatment of Renal Stones

Background and Objective: Extracorporeal shock wave lithotripsy (ESWL) was introduced in the early 80s and has since become the gold standard for the treatment of urinary stones.It is the most widely performed procedure for stone treatment, treating all sizes and locations of stones, the results of which have been widely published.This study was designed with an aim to assess the outcomes and complications of the ESWL treatment of renal stones by using ultrasonography (US).Materials and Methods: A total of 100 patients with renal stones, treated using the Modulith SLX-F2 were recruited prospectively for a period of 12 months between April, 2017 and April, 2018.Renal US was conducted using Mindray's DC-60 machine, to follow the outcome of stone clearance for up to 3 months after the first ESWL session.All data was analyzed by mean±SD and student t-test was used to compare the variables at p<0.05.Results: Out of total number of patients, 60 were males and 40 females.The mean stone size and serum creatinine level were 15±1.8mm and 2.8±0.2mg dLG 1 , respectively.US revealed an ESWL treatment success in most cases (83%), with an ESWL treatment sensitivity, specificity and accuracy of 98.81, 89.47 and 97.09%.Conclusion: This study concluded that ultrasonographic assessment showed 83% acceptable success rate for renal stone fragment passage and complete stone disintegration post-ESWL treatment.