[The assessment of nephroblastoma therapy results using the SIOP 92-01 protocol]

43 patients aged between 4 days and 10 years 8 months with Wilms' tumor were treated according SIOP 92-01 protocol. Clinical stage, therapy results and adverse events were analysed. In presented group 9 complete recoveries were obtained in the period of over 30 months, in 94%--without clinical symptoms of disease the during therapy or during observation period shorter than 30 months. There were 14% of deceases. Neoadjuvant chemotherapy allowed to decrease the intraoperative stage of the disease progression. In analysed group stage II N (-) was the most common, what is higher in comparison with other European groups. The problem is the treatment of bilateral and generalized Wilms' tumour.