A retrospective study was conducted on the survival of 178 patients with chronic myelogenous leukemia from January 1948 through December 1967. Through analysis of survival time, comparison has been made between a group of 50 patients treated with chemotherapy alone vs. a group of 84 patients treated with radiation therapy to the spleen and chemotherapy. No difference could be found in these two major therapeutic goups (median survival 31 months for both). Further analysis has been made to determine whether survival could be correlated to the initial extent of disease. Initial hemoglobin value, WBC, platelet counts, absolute blast count, spleen size, and selected combination of these factors showed no significant correlation with survival. Acute blastic transformation occurred in 60% of 117 patients. Infection as a cause of death was less frequent in patients with progressive disease without acute blastic transformation, while renal failure due to hyperuricemia and thromboembolic phenomena occurred more often in this group as compared with patients dying in acute blastic phase.
N THE LAST 20 YEARS, SUBSTANTIAL PROGRESS I has been made in the management of acute lymphoblastic leukemia through the successive introduction of new agents effective in inducing and maintaining a remission. This has led to a considerable increase in survival compared with earlier reported series. 3.15.16