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PATENCY OF URETERAL STENT INDWELLED IN PATIETS AFTER ESWL Takeshi Masuda 1 , Shiro Baba 1 , Taketsugu Ishii 1 , Hiroshi Tazaki 1 1Department of Urology, School of Medicine,Keio University Keyword: ステントカテーテル , 体外衝撃波砕石術 pp.599-602
Published Date 1991/7/20
DOI https://doi.org/10.11477/mf.1413900397
  • Abstract
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18 patients with double-pigtail stent (WP stent 6 F in size) used in ESWL to reduce complications and mobidity caused by the passage of stone fragments, were divided into 3 groups according to the indwelled period. Group A : under 4 weeks (n=8), group B : 4 to 8 weeks (n=4), group C : longer than 8 weeks (n= 6). The patency of these stents was analyzed with X-ray films and in vitro pressure-flow study : WP stent was placed in the ureter model (rubber tube 7 mm in diameter) and flow rate was measured at the bladder side with changing pressure at the other side (20 to 50 cm H2O).


Copyright © 1991, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1332 印刷版ISSN 0385-2393 医学書院

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