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Association of granulocytosis with poor prognosis in patients with acute myelogenous leukemia and translocation of chromosomes 8 and 21.

Forty-three patients with acute myelogenous leukemia (AML) and a translocation 8;21 were reviewed. The patients' median age was 30 years, and 62% were men. Twenty-three patients (53%) had loss of a sex chromosome and ten (23%) had other chromosomal abnormalities in addition to the 8;21 translocation. Complete remission (CR) with induction chemotherapy was achieved in 40 patients (93%). The median CR duration was 18 months (range, 1 to 137+ months). Median survival time was 17 months (range, 0.5 to 138+ months) with a 3-year survival rate of 31%. Twenty-three patients (53%) relapsed between 1 and 58 months after entering remission with reinduction therapy resulting in 8 CRs (35%). Thirteen characteristics were examined for an effect on survival. The most striking finding was a significant association between elevated absolute granulocyte count and poor survival (P = .002). WBC count greater than 10,000/microL was also associated with shorter survival (P = .05). Patient age, albumin level, and platelet count showed trends for survival association. Although patients with AML and t(8;21) are regarded as a favorable group with respect to survival, we found a subset of patients who do very poorly. Intensive or more investigational approaches in first remission should be considered for these patients.