title: [Diagnosis and follow-up of superficial bladder tumors using non-invasive techniques].
abstract: The discomfort caused by cystoscopy to the patient with superficial bladder tumor has led to the routine use of other less invasive but similarly reliable procedures. We performed a two-year comparative study of cystoscopy versus abdominal ultrasonography/cytology in 90 patients. Two hundred procedures were performed for each method of evaluation. Together, the sensitivity and specificity of both procedures were 61% and 98%, respectively. The positive and negative predictive values were 94% and 87%, respectively. These good results have permitted us to change the follow-up protocol of these patients such that currently ultrasonography and cytology are performed once every 6 months, and cystoscopy is used only for those cases with clinical features suggestive of recurrence and a negative work up of those with a negative scan and positive cytology.
authors.affiliation: Departamento de Cirugía, Hospital Clínico Universitario, Granada, España.
authors.forename: A
authors.initials: A
authors.lastname: Zuloaga Gómez
authors.forename: J
authors.initials: J
authors.lastname: Luis Ortiz
authors.forename: M
authors.initials: M
authors.lastname: Nogueras Ocaña
authors.forename: J
authors.initials: J
authors.lastname: Fernández Mena
authors.forename: J L
authors.initials: JL
authors.lastname: Martínez Torres
mesh_terms: D003558:Cystoscopy; D005500:Follow-Up Studies; D006801:Humans; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging / Q000652:urine; D011237:Predictive Value of Tests; D014463:Ultrasonography; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery / Q000652:urine; D014556:Urine / Q000166:cytology
vernacular_title: Diagnóstico y seguimiento de los tumores vesicales superficiales mediante técnicas no invasivas.