Valeurs de référence érythrocytaires et leucocytaires chez le nouveau-né à Bamako, Mali.
2012
Reference values of red blood cell and with blood cell count are not established at birth in Mali. This study aimed to determine reference values of erythrocyte and leukocyte at birth in Bamako. Cord blood was collected without delay after clamping and studied for complete blood cell count in 481 newborns with a birth weight > 2500 g, Apgar score ≥ 7 at 5 or 10 minutes, without abnormal migration of hemoglobin and whose mothers were willing in Bamako. The medians and mean values, 2.5 and 97.5 percentiles were calculated. The normal reference values of red blood cell, red blood indices and leukocytes were (mean ± 1SD and range): RBC = 4,00 ± 0,46.1012/L (3,13 – 4,89), Hb = 14,12 ± 1,49 g/dL (11,20 – 17,00), Hct = 40,27 ± 4,71% (31,62 – 50,18), MCV = 101 ± 5 fl (91 – 112), MCHC = 35,37 ± 2,16 pg/cellule (30,70 – 39,59), MCH = 35,06 ± 0,93 g/dL (33,40 – 36,90), RDW = 17,79 ± 7,33% (15,50 – 20,39), Reticulocytes (109/L) = 133,081 ± 29,95 (66,62 – 200,86), GB (109/L) = 13,24 ± 7,23 (7,20 – 23,70), PMN (109/L) = 7,16 ± 4,70 (3,07 – 14,22), PME (109/L) = 0,28 ± 0,26 (0 – 0,98), PMB(109/L) = 0,05 ± 0,09 (0 – 0,31), Lymphocytes (109/L) = 4,49 ± 2,45 (1,96 – 9,42), Monocytes (109/L) = 1,06 ± 0,73 (0,21 – 2,54), myelocytes = 1.43 ± 1.51%, erythroblasts = 4.52 ± 7.83%. Male babies had lower Polymorphonuclear count than the female neonates. Taking into account these results in interpretation of whole blood cell count in newborn should avoid misdiagnosis as well as additional investigations in population with low incomes
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