Neonatal hemorrhagic anemia

Within 2 weeks after birth, venous hemoglobin ≤130g / L and capillary blood ≤145g / L can be diagnosed as anemia. The clinical manifestations of neonatal hemorrhagic anemia vary depending on the urgency and relief of the blood loss process. Neonatal blood loss can occur in three different periods before, during and after birth. Prenatal blood loss is mainly caused by fetal-fetal blood transfusion, fetal-maternal blood transfusion, fetal-placental hemorrhage, and some prenatal diagnosis and treatment operations. Severe acute blood loss can occur in shock, and severe cases can cause death and must be rescued in time; Blood loss can cause neonatal anemia, intrauterine dysplasia, or mild iron deficiency anemia. According to foreign statistics, neonatal hemorrhagic anemia (Bloodlossanemiaofnewborn) accounts for 5% to 10% of severe anemia; 25% of infants in the neonatal intensive care unit have a red blood cell capacity of 25ml / kg, most of which are caused by blood loss.

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