Abstract：
:Studies of predictive factors of extracorporeal shockwave lithotripsy (ESWL) failure in patients with ureteral stones have not yielded results sufficient to prevent ESWL failure. The present study investigated patients with ureteral stone and analyzed the predictive factors of ESWL failure. Ninety patients with ureteral stone treated from January 2006 to June 2012 using ESWL for ureteral stone were enrolled. Patient's demographic data including age, gender, body mass index (BMI), symptoms and calculous characteristics including location, size, episode and the grade of hydronephrosis were recorded. Statistical results were performed using univariate and multivariate analyses for the predictive factors of ESWL failure. In univariate analysis, calculous location, size, and grade of hydronephrosis between two groups displayed significant differences (p < 0.05). The predictive factors of ESWL failure were BMI >25 kg/m(2) [Odds ratio (OR) = 3.5, 95% confidence interval (CI) 1.1-11.0], calculous size ≥ 1 cm (OR = 10.5, 95% CI 3.0-36.2), calculous location (mid-ureter; OR = 8.49, 95% CI 1.5-45.7) and severe grade of hydronephrosis (OR = 12.3, 95% CI 1.9-79.5). In conclusions, ESWL failure can be predicted in cases of obesity, calculous size exceeding 1 cm, mid-ureteral stone and severe hydronephrosis. When we consider calculous management in patients with these risk factors, initial surgical approach is recommended instead of ESWL.
journal_name
Urolithiasisjournal_title
Urolithiasisauthors
Hwang I,Jung SI,Kim KH,Hwang EC,Yu HS,Kim SO,Kang TW,Kwon DD,Park Kdoi
10.1007/s00240-014-0641-8subject
Has Abstractpub_date
2014-06-01 00:00:00pages
263-7issue
3eissn
2194-7228issn
2194-7236journal_volume
42pub_type
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