title: [TRANSURETHRAL URETEROLITHOTRIPSY FOR UPPER URINARY TRACT STONE IN SMALL CHILDREN WEIGHNING AROUND 10KG].
abstract: Management strategy for upper urinary tract calculi in small children is still a matter controversial. We report successful management of ureteral stone with transurethral ureterolithotripsy (TUL) in 2 boys weighing around 10 kg. Case 1: A 2-year-old boy (78 cm in height, 9.6 kg in weight), who received hydrocortisone and fludrocortisone for the treatment of 21-hydroxylase deficiency, was referred to our hospital with a right 9-mm lower ureteral stone. For TUL, a 7.5 Fr rigid cystoscope was introduced into the ureter directly after dilation of the ureteral orifice. By using Holmium:YAG laser for lithotripsy, complete stone evacuation was achieved. Stone analysis showed the composition of calcium phosphate and calcium oxalate. Case 2: A 1-year-old boy (80 cm in height, 10.5 kg in weight) with neurofibromatosis type 1 was referred to our hospital with a left 7.5-mm ureteral stone at the ureteropelvic junction. TUL was performed using a 4.5 F rigid ureteroscope and Holmium:YAG laser. No residual stone was identified. Stone analysis showed the composition of calcium oxalate. TUL is a safe and feasible option for small children, even in boys weighing approximately 10 kg.
authors.forename: Yoko
authors.initials: Y
authors.lastname: Nishimura
authors.forename: Kimihiko
authors.initials: K
authors.lastname: Moriya
authors.forename: Takahiko
authors.initials: T
authors.lastname: Mitsui
authors.forename: Takeya
authors.initials: T
authors.lastname: Kitta
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Kanno
authors.forename: Masafumi
authors.initials: M
authors.lastname: Kon
authors.forename: Nobuo
authors.initials: N
authors.lastname: Shinohara
mesh_terms: D000312:Adrenal Hyperplasia, Congenital / Q000188:drug therapy; D001835:Body Weight; D002675:Child, Preschool; D005438:Fludrocortisone / Q000009:adverse effects / Q000627:therapeutic use; D006801:Humans; D006854:Hydrocortisone / Q000009:adverse effects / Q000627:therapeutic use; D007223:Infant; D017602:Lithotripsy, Laser; D008297:Male; D014545:Urinary Calculi / Q000139:chemically induced / Q000628:therapy*
chemical_list: D005438:Fludrocortisone; D006854:Hydrocortisone