[Chemoprophylaxis and endoscopical treatment of upper urinary tract tumors recurrences]. / Quimioprofilaxis y tratamiento endoscópico de las recidivas de los tumores del tracto urinario superior.

OBJECTIVES: Upper urinary tract tumors are a rare condition. We review our experience in the diagnosis of upper urinary tract tumors and their recurrences, emphasizing the management of recurrences. METHODS: From January 1980 to June 2002 139 endourological procedures were carried out in 94 patients with the working diagnosis of upper urinary tract tumor. RESULTS: The overall treatment failure rate was 18.7 with ureteroscopy being the least efficient technique. CONCLUSIONS: In our experience, there is an indication for conservative endourological treatment in superficial low grade G1-2 tumors smaller than 2 cm.