Association between time to lithotripsy and stone-free rate in patients with ureteral stones undergoing shock wave lithotripsy.

ABSTRACT: Early shock wave lithotripsy is associated with higher stone-free rate compared to delayed treatment of ureteral stones, but may constitute overtreatment because ureteral stones can pass spontaneously. We studied the association between time to treatment and stone-free rate in patients with ureteral stones to determine optimal shock wave lithotripsy timing. We retrospectively analyzed 537 patients undergoing shock wave lithotripsy for ureteral stones. Patients were divided into five groups according to time from onset of symptoms to lithotripsy-urgent (0-3 days), early (4-30 days), late (31-60 days), long-delayed lithotripsy (≥ 61 days), and asymptomatic. Stone-free rates were compared among groups. Mean age and stone size were 55.6 ± 13.1 years and 7.48 ± 3.29 mm, respectively. Mean numbe

SUBMITTER: Washino S 

PROVIDER: S-EPMC7778408 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature