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At least 703 records · Page 39Linked to original sources
PubMed1998

Ewing's sarcoma treatment in Scandinavia 1984-1990--ten-year results of the Scandinavian Sarcoma Group Protocol SSGIV.

A report on the long-term follow up of the first cooperative Scandinavian Sarcoma Group study in Ewing's sarcoma of bone is presented. Fifty-two previously untreated patients entered the study between 1984 and 1990. Half of the tumors were located in the extremities and one quarter in the pelvis. The combined modality treatment consisted of 5 cycles of chemotherapy--including vincristine, methotrexate, doxorubicin, cyclophosphamide, bleomycin and dactinomycin. The first two cycles were followed by local resection or amputation in 35 patients and by radiotherapy alone in 17 patients. When surgery was not performed, was incomplete or yielded poor margins radiotherapy was given at a dose of 40-60 Gy. Local tumor relapses developed in 10 patients and in all but one patient were accompanied by metastatic disease. Five patients had metastasis at diagnosis and distant metastases developed after primary treatment in 27 patients after a median of 14 months. The median follow-up time for the 20 surviving patients is 10 years. At 5 years the tumor-related survival was 46% and the metastasis-free survival 43%. Late tumor relapses occurred in 4 patients, which reduced the 10-year tumor related survival to 41% and the metastasis-free survival to 38%. Histopathological tumour response correlated with survival with 5-year metastasis-free survival rates of 73% for the good responders and 35% for the poor responders.

Adolescent↗
PubMed1999

Diagnosis and tumor response in osteosarcoma and Ewing's sarcoma, according to treatment protocols SSG II, SSG VIII, ISG/SSG I, SSG IV and SSG IX.

114 patients with osteosarcoma in the extremities had been reported to the SSG II trial, 132 to the SSG VIII trial and, until October 1998, 99 to the ISG/SSG I trial. The SSG IV trial included 53 patients and the SSG IX trial 104 patients until October 1998. In the SSG II trial, 19% were good responders (grades III and IV) as compared to 51% in the SSG VIII trial. On reevaluation was the response changed in one forth of the cases in both the SSG II and SSG VIII trials. In 9 and 10 cases (8%), respectively, the reevaluation resulted in a change from "good responder" to "bad responder". In the ISG/SSG I trial, the preliminary results showed a good response in 22% of the cases. In the SSG IV trial, 44% were good responders (grades III and IV), as compared to 54% in the SSG IX trial.

Antineoplastic Agents↗