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Hematology, Transfusion and Cell Therapy 2019-Jan-Mar

Revisiting the complete blood count and clinical findings at diagnosis of childhood acute lymphoblastic leukemia: 10-year experience at a single center.

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José Jaime-Pérez
Gisela García-Arellano
José Herrera-Garza
Luis Marfil-Rivera
David Gómez-Almaguer

Palabras clave

Abstracto

Heterogeneity regarding clinical and laboratory findings at diagnosis of acute lymphoblastic leukemia exists. The frequency of complete blood count abnormalities and its combinations, symptoms and physical findings were investigated in Hispanic children from an open population at the diagnosis of acute lymphoblastic leukemia.The patient charts and electronic records of under 16-year-old children diagnosed with acute lymphoblastic leukemia over 10 years at a regional hematology center of a university hospital were analyzed to retrieve data concerning the complete blood count at first evaluation. Type and distribution of abnormal data, frequency of symptoms and physical findings at presentation were documented.

Results
The records of 203 children aged 0-15 years diagnosed with acute lymphoblastic leukemia from 2006 to 2016 were revisited. The results of the blood workup showed a median white blood cell count of 7120 × 109/L (range: 450-600,000 × 109/L), and a median hemoglobin concentration of 7.5 g/dL (range: 2.4-15.3 g/dL), whereas the median platelet count was 47,400 × 109/L (range: 4000-544,000 × 109/L). Leukocytosis and leukopenia were present in 36.6% and 36.1% of cases, respectively; anemia was diagnosed in 82.9% children. The order of frequency for major clinical symptoms was fatigue 62%, fever 60%, bone and joint pain 39%, hyporexia 33% and weight loss 21%, while main physical findings were hepatomegaly 78%, splenomegaly 63%, lymphadenopathy 57%, pallor 48%, and purpura 30%.

Data differing from those classically expected at diagnosis of acute lymphoblastic leukemia in children were documented in a cohort of Hispanic children over one decade with a wide spectrum of complete blood count abnormalities, forms of presentation and frequency of physical findings.

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