Leukapheresis and cranial irradiation in patients with hyperleukocytic acute myeloid leukemia: no impact on early mortality and intracranial hemorrhage.
To assess the role of leukapheresis and cranial irradiation in reducing the incidence of intracranial hemorrhage (ICH) and early death in patients with hyperleukocytic acute myeloid leukemia (AML) and the impact of such treatment on survival. This study retrospectively analyzed the records of 75 patients with hyperleukocytic AML who had a white cell count over 100,000/microL. All patients had de novo AML except for two with therapy-related AML. Various factors were assessed for their impact on morbidity and mortality, particularly the role of pre-induction leukapharesis and cranial irradiation. The most significant risk factors for ICH were the presence of two or more symptoms of leukostasis (odds ratios [OR] 10.6, 95% CI: 2.67-42.02; P = 0.001) and respiratory distress (OR 5.41, 95% CI: 1.44-20.32, P = 0.012). The most significant risk factors for early death were age >or= 65 (OR 4.21, 95% CI: 1.45-12.21, P = 0.008), respiratory failure (OR 3.34, 95% CI: 1.24-9.50, P = 0.018), and two or more symptoms (OR 3.50 95% CI: 1.16-10.52, P = 0.026). Neither leukapheresis nor cranial irradiation were significantly associated with a decreased incidence of ICH (P = 0.349 and 0.378, respectively). Leukapheresis had no significant influence on early death (P = 0.367). The median survival patients receiving no pretreatment was 10.50 months (range 2.58-18.42) and for those receiving pretreatment 1.50 months (range 0.10-3.16; log-rank test, P = 0.062). Leukapheresis and cranial irradiation do not improve survival or decrease the incidence of ICH in adults with hyperleukocytic AML.
Chang
Ming-Chih
MC
Department of Hematology-Oncology, Mackay Memorial Hospital and Mackay Medicine, Nursing and Management College, Taipei, Taiwan. mmhdonald@yahoo.com.tw
Chen
Tsai-Yun
TY
Tang
Jih-Luh
JL
Lan
Yii-Jenq
YJ
Chao
Tsu-Yi
TY
Chiu
Chang-Fang
CF
Ho
Hsin-Tsung
HT
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D020300:Intracranial Hemorrhages / Q000209:etiology / Q000517:prevention & control*; D053208:Kaplan-Meier Estimate; D007937:Leukapheresis; D015470:Leukemia, Myeloid, Acute / Q000150:complications / Q000532:radiotherapy*; D007958:Leukocyte Count; D018921:Leukostasis / Q000532:radiotherapy*; D008297:Male; D008875:Middle Aged; D012131:Respiratory Insufficiency / Q000209:etiology; D012189:Retrospective Studies; D016896:Treatment Outcome