MP014: Treatment failure predictors of extracorporeal shockwave lithotripsy for symptomatic ureteral stones
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  • 2017-12-25,
  • 上傳者: TUA秘書處,
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體外衝擊波碎石術治療症狀性輸尿管結石的療效失敗之評估因子
蔣孟哲、姜秉均、廖俊厚、林佑樺
新店耕莘醫院
 
Treatment failure predictors of extracorporeal shockwave lithotripsy
for symptomatic ureteral stones
 
Meng-Che Chiang, Bing-Juin Chiang, Chun-Hou Liao, Yu-Hua Lin
Division of Urology, Department of Surgery, Cardinal Tien Hospital, New Taipei City, Taiwan
Objectives
Non-contrast computed tomography (NCCT) is not always performed clinically if the diagnosis of ureteral calculi has been confirmed using other radiographic imaging modalities. The aim of this study was to identify predictors of successful extracorporeal shockwave lithotripsy (ESWL) without assistance of NCCT.
Methods
We retrospectively reviewed the medical records of patients with symptomatic solitary ureteral stones who underwent ESWL between November 2015 and January 2016. Abdominal plain radiography or intravenous urography were performed before ESWL for localization. The exclusion criteria were repeated sessions of ESWL for the target stone and congenital genitourinary tract anomalies. The demographic characteristics, clinical history, medical charges, or imaging features of the stones were recorded. Successful treatment was defined as no fragments detected on radiography or ultrasonography in 4 weeks. For radiolucent calculi, successful treatment was regarded as cases without hydronephrosis, symptoms, or hematuria. Patients experiencing intractable pain and undergoing subsequent auxiliary surgeries were regarded as having ESWL treatment failure.
Results
Age (odds ratio [OR], 1.042; 95% confidence interval [CI], 1.007–1.078), history of ipsilateral renal or ureteral calculi episodes (OR, 2.669; 95% CI, 1.281–5.687), stone burden (OR, 3.499; 95% CI, 1.284–9.530), and radiopaque stone (OR, 2.351; 95% CI, 1.049–5.267) were significant predictors of ESWL failure in all patients.
Conclusions
For treating symptomatic ureteral stones, those with smaller size, radiolucency, and without a history of ipsilateral renal or ureteral calculi could be considered for first-line therapy with ESWL.
 
 
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    2017-12-25 12:55:04
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