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Abstract
One hundred and eight adult patients with acute leukemia were diagnosed in the middle Norwegian health region during the 5-year period 1984-88, giving an incidence rate of 4.6/100000 per year. Nine patients had acute lymphoblastic leukemia (ALL), 93 acute myeloid leukemia (AML) and 6 patients acute leukemia without definite sub-classification. The median age of AML patients was 66 years. Thirty-five patients (median age 78 years) were found non-suitable for cytotoxic drugs, while 58 AML patients (median age 57 years) were given aplasia-inducing drug combinations according to one of three treatment programs depending on the time of diagnosis and age, in order to induce remission. Six patients were given oral drugs or low dose ara-C.
All patients were followed until death or for an observation time of more than 5 years (median 7 years). The overall long term survival was found to be 12/108 for all acute leukemias, 8/93 for AML patients and 4/9 for ALL patients. For the AML patients given intravenous aplasia-inducing drugs the remission rate was 0.65, the median remission duration 12.2 months and the 5-year survival rate 0.19. For 31 AML patients, (median age 41 years), started on an intensive chemotherapy program, the 5-year survival rate was 0.32 and the relapse-free 5-year survival rate for the 22 patients entering complete remission was also 0.32.