[Results of therapy in Wilms' tumor]

Two hundred seventeen patients (aged under 14) with histologically confirmed Wilms tumor were treated and followed up in 1965-1995. Until 1976 this condition was treated according to the national standard procedures of the time. The SIOP program approach has been introduced ever since. In a study group of 154 cases treated at the Institute's Clinic alone, the actuarial 20-year survival was 63%. It rose to 72% whenever the SIOP protocol was strictly observed.