title: [Impacted ureteral stents with cystine encrustation in cystinuric patients : report of two cases].
abstract: A 23-year-old man and a 62-year-old man suffering from cystinuria underwent extracorporeal shock wave lithotripsy (ESWL) for right renal stone and left ureteral stone, respectively. They had double-J stents placed before ESWL, but since attempts to retrieve the stents were unsuccessful due to encrustation, they were referred to our clinic. Multimodal endourologic and open approaches including ESWL, transurethral ureterolithotripsy, and pyelolithotomy were required to render them stent- and stone-free. The guidelines do not recommend routine stenting before ESWL ; therefore, the indication and duration of indwelling stents should be minimized. Multimodal options including not only ESWL and endoscopic surgery but also open surgery, should be attempted for the management of encrusted stents. Close monitoring and follow up are important to the prevent complications of ureteral stents.
authors.affiliation: The Department of Urology, Hyogo College of Medicine.
authors.forename: Yukako
authors.initials: Y
authors.lastname: Nakanishi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Hanasaki
authors.forename: Toeki
authors.initials: T
authors.lastname: Yo
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Shiraishi
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Togo
authors.forename: Rikiya
authors.initials: R
authors.lastname: Taoka
authors.forename: Toru
authors.initials: T
authors.lastname: Suzuki
authors.forename: Yoshihide
authors.initials: Y
authors.lastname: Higuchi
authors.forename: Akihiro
authors.initials: A
authors.lastname: Kanematsu
authors.forename: Takahiko
authors.initials: T
authors.lastname: Hashimoto
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Doi
authors.forename: Michio
authors.initials: M
authors.lastname: Nojima
authors.forename: Shingo
authors.initials: S
authors.lastname: Yamamoto
mesh_terms: D003553:Cystine / Q000032:analysis*; D003555:Cystinuria / Q000150:complications*; D006801:Humans; D007669:Kidney Calculi / Q000628:therapy; D008096:Lithotripsy; D008297:Male; D008875:Middle Aged; D015607:Stents / Q000009:adverse effects*; D014513:Ureter; D014514:Ureteral Calculi / Q000628:therapy; D055815:Young Adult
chemical_list: D003553:Cystine