Fifty-seven patients in initial phase of acute promyelocytic leukemia (APL) were treated in the same department with heparin infusion, platelet transfusions, and two related induction regimens both including cytosine arabinoside and daunorubicin. Clinical and biological findings at presentation were studied. The complete remission (CR) rate was 53%. Twenty-seven patients (47%) died during the initial course of the disease, either before day 5 (early death [ED], n = 7) or after day 5 (death in aplasia [DA], n = 20). Most ED was due to intracerebral hemorrhage (6/7), especially when large hemorrhages had been seen on fundus oculi examination. Most DA was due to multivisceral failure (9/20). No correlation was found between initial disseminated intravascular coagulation (DIC) and death. However, the worsening of coagulation parameters during induction therapy, with or without initial DIC, significantly increased the occurrence of renal and respiratory failure which were particularly frequent during the first month. The median duration of survival was short (3.5 months) and the median duration of CR (11 months) was similar to that of other acute myeloid leukemias treated with the same regimens. The possible causes of the high mortality observed during the initial courses of APL and the possible benefit of a more graduate induction chemotherapy are discussed.

Acute promyelocytic leukemia in 57 previously untreated patients.

Seven adults with acute promyelocytic leukemia (APL) and disseminated intravascular coagulation were treated for remission induction with daunorubicin hydrochloride and prednisone. In all patients the coagulopathy was managed with continuous-infusion heparin sodium and vigorous transfusion with platelets, cryoprecipitate, and fresh frozen plasma. Five patients survived induction; they all achieved complete remission (CR). Median duration of CR was 27+ months; two patients presently survive in their initial CR at 28 and 48 months. Recognition of APL as a distinct type of acute leukemia and prompt initiation of treatment aimed at rapid cytoreduction and control of the coagulopathy has resulted in a prolonged disease-free survival for the majority of patients. ( Arch Internal Med 138:1677-1680, 1978)

Acute promyelocytic leukemia. Management of the coagulopathy during daunorubicin-prednisone remission induction.

Two patients diagnosed as having acute promyelocytic leukemia (APL) and disseminated intravascular coagulation (DIC) were closely followed from the day of admission until completion of the first course of chemotherapy with serial coagulation studies including plasma levels of functional antithrombin III activity (AT III) by fluorometric analysis and anti-activated Factor X activity (anti-Xa) by coagulation assay. Both patients were treated with intravenous heparin and the presence of heparin in plasma was followed by the thrombin time. Consistently normal levels of AT III (greater than 80%) were found despite evidence of intravascular coagulation. However, plasma levels of anti-Xa were often low (less than 70%) and increased only in the presence of heparin. The significance of these results in relationship to heparin therapy for disseminated intravascular coagulation of APL is discussed.

Antithrombin III and anti-activated factor X activity in patients with acute promyelocytic leukemia and disseminated intravascular coagulation treated with heparin.

Transfusions de plaquettes

Emergency treatment of acute promyelocytic leukemia and its hemorrhagic complications. Apropos of 30 cases

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Emergency treatment of acute promyelocytic leukemia and its hemorrhagic complications. Apropos of 30 cases