Application of memory metallic stents to urinary tract disorders in pediatric patients.
The use of memory metallic stents for the urinary tract in pediatric patients has not been reported. The authors report on 2 patients with urinary tract disorders who were successfully treated with a memory metallic stent. A thermoexpandable, nickel-titanium alloy stent was placed at the urethroureteral junction of a 4-year-old boy with ureteral stenosis associated with cloacal exstrophy for 18 months and at the urethra of a 2-year-old girl with ischuria after a repair of cloacal anomaly for 6 months. Temporary insertion of a memory metallic stent is a safe and effective alternative for organic stricture or functional obstruction of the urinary tract in pediatric patients.
Kamata
Shinkichi
S
Department of Pediatric Surgery, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan. kamata@pedsurg.med.osaka-u.ac.jp
Usui
Noriaki
N
Kamiyama
Masafumi
M
Yoneda
Akihiro
A
Tazuke
Yuko
Y
Ooue
Takaharu
T
D000015:Abnormalities, Multiple / Q000601:surgery*; D001746:Bladder Exstrophy / Q000601:surgery*; D002404:Catheterization; D002675:Child, Preschool; D002988:Cloaca / Q000002:abnormalities*; D003559:Cystostomy; D004867:Equipment Design; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology / Q000601:surgery; D008297:Male; D009403:Nephrostomy, Percutaneous; D009532:Nickel; D015641:Radiography, Interventional; D012003:Rectal Fistula / Q000601:surgery*; D012006:Rectovaginal Fistula / Q000601:surgery*; D015607:Stents; D014025:Titanium; D014517:Ureteral Obstruction / Q000601:surgery*; D001750:Urinary Bladder, Neurogenic / Q000209:etiology / Q000601:surgery; D014546:Urinary Catheterization; D014548:Urinary Fistula / Q000601:surgery*
C040654:titanium nickelide; D009532:Nickel; D014025:Titanium