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Blood, 15 January 2005, Vol. 105, No. 2, pp. 862-864. Prepublished online as a Blood First Edition Paper on September 14, 2004; DOI 10.1182/blood-2004-05-1841.
TRANSFUSION MEDICINE The efficiency of transfusing high doses of platelets in hematologic patients with thrombocytopenia: results of a prospective, randomized, open, blinded end point (PROBE) studyFrom the EFS Centre-Atlantique, Tours, France; INSERM CIC202, Tours, France; Etablissement Français du Sang (EFS) Bourgogne France-Comté, Besançon, France; Hematology Department, CHU Minjoz, Besançon, France; Hematology Department CHU, Angers, France; EFS Pays de Loire, Angers, France; Hematology Department CHU Morvan, Brest, France; EFS Bretagne, Brest, France; and Hematology Department CHU Bretonneau, Tours, France.
We performed a prospective, randomized, open, blinded end point (PROBE) study to assess the efficiency of transfusing high doses of platelets in patients with thrombocytopenia, either acute leukemia (AL) or those undergoing autologous hematopoietic stem cell transplantation (AT). Patients were randomly assigned to receive transfusions with a target dose of 0.5 x 1011/10 kg (arm A) or 1 x 1011/10 kg (arm B). A total of 101 patients were included, of whom 96 were given at least one transfusion. The median time between the first transfusion and when the platelet count reached at least 20 x 109/L increased from 63 hours to 95 hours in the arm B group (P = .001), and the median number of transfusions was lower in this group (2; P = .037). The total number of transfused platelets did not differ between groups (14.9 x 1011 for arm A versus 18.5 x 1011 for arm B; P = .156). In such patients, a prophylactic strategy of high doses of platelets could improve platelet transfusion efficiency.
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