Age-related delay in urinary stone clearance in elderly patients with solitary proximal ureteral calculi treated by extracorporeal shock wave lithotripsy

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• 作者：Osamu Ichiyanagi ; Akira Nagaoka ; Takuji Izumi ; Yuko Kawamura ; Tomoyuki Kato
• 关键词：Aging ; Extracorporeal shock wave lithotripsy ; Ureteral stone ; Stone ; free ; Elder
• 刊名：Urological Research
• 出版年：2015
• 出版时间：October 2015
• 年：2015
• 卷：43
• 期：5
• 页码：419-426
• 全文大小：827 KB
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• 作者单位：Osamu Ichiyanagi (1)
  Akira Nagaoka (1)
  Takuji Izumi (2)
  Yuko Kawamura (2)
  Tomoyuki Kato (1)
  
  1. Department of Urology, Yamagata University Faculty of Medicine, Iida-Nishi 2-2-2, Yamagata City, Yamagata Prefecture, Japan
  2. Department of Urology, South Miyagi Medical Center, Aza-nishi 38-1, Ogawara Town, Miyagi Prefecture, Japan
  
• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Urology and Andrology
  Nephrology
  Medical Biochemistry
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1434-0879

文摘

We investigated the effects of aging on the stone-free rate (SFR) after shock wave lithotripsy (SWL) for the treatment of proximal ureteral calculi. A total of 247 consecutive patients were retrospectively selected, classified into seven groups set at 10 year increments (from 20 to 90 years), and examined for SFR after SWL. According to our final analysis, 185 male and 62 female patients with an average age of 54.1 years had stones with a diameter of 11.5 mm and a density of 893.1 Hounsfield units. On average, SFR was 74.9 % at 3 months after 1.7 SWL sessions. SFR gradually reached ?0 % for each age-group after 1.5- years. Median durations to achieve 50 % SFR were estimated to be 21 and 86 days for those in their 20 and 80 s, respectively. However, the difference between the two estimates was not significant (p = 0.064). The durations to achieve 50 % SFR for the other groups lay between these two estimates. Aging does not affect long-term SFR, but patients aged ?0 years might experience delayed stone clearance within the first 12 months after SWL. Keywords Aging Extracorporeal shock wave lithotripsy Ureteral stone Stone-free Elder