title: Late onset ureteric obstruction after endoscopic subureteric injection of calcium hydroxyapatite for primary vesicoureteric reflux.
abstract: Ureteric obstruction occurs in about 1% of cases undergoing endoscopic treatment of vesicoureteric reflux (VUR). It usually develops shortly after treatment. We report on a case of obstruction occurring 1 year after subureteric injection of calcium hydroxyapatite. Obstruction was progressive and eventually required open ureteric reimplantation. Ureteric obstruction can occur also in the long-term after endoscopic treatment of VUR and even in the absence of symptoms. Although it is so rare as to make long-term follow-up of all treated cases cost ineffective, physicians should be aware of such complications, especially while testing new bulking agents.
authors.affiliation: Section of Paediatric Urology, Department of Urology, University Hospital of Padua, Padua, Italy.
authors.forename: Antonio
authors.initials: A
authors.lastname: Zaccara
authors.forename: Marco
authors.initials: M
authors.lastname: Castagnetti
authors.forename: Francesco
authors.initials: F
authors.lastname: Beniamin
authors.forename: Waifro
authors.initials: W
authors.lastname: Rigamonti
mesh_terms: D001672:Biocompatible Materials / Q000008:administration & dosage* / Q000009:adverse effects; D002675:Child, Preschool; D003558:Cystoscopy; D017886:Durapatite / Q000008:administration & dosage* / Q000009:adverse effects; D005260:Female; D006801:Humans; D007267:Injections / Q000009:adverse effects; D019736:Prostheses and Implants / Q000009:adverse effects*; D014513:Ureter; D014517:Ureteral Obstruction / Q000209:etiology*; D014718:Vesico-Ureteral Reflux / Q000628:therapy*
chemical_list: D001672:Biocompatible Materials; D017886:Durapatite