2023 Volume 36 Issue 1 Pages 107-112
The first stone-free rate of 1,739 patients who received ESWL monotherapy was 44.4％, and the final stone-free rate was 78.9％. The complications of ESWL were pyelonephritis (3.7％), stone street (1.3％), sepsis (0.4％), septic shock (0.4％) and subcapsular hematoma (0.3％). Risk factors associated with stone-free rate at ESWL were stone size 1 cm or greater (p＜0.0001), lower calyx stone (p＜0.0001) and 70 years old or older (p＝0.0008). In cases that did not include these predictors, the first stone-free rate was 58.4％, and the final stone-free rate was 90.1％. Impacted stones accounted for 36.0％ in cases where TUL was performed additionally after ESWL 4 times or more, and the number of ESWL was considered to be up to 3 times.
