The aetiology of severe anaemia in pregnancy in Ndola, Zambia

The aetiology of severe anaemia (haemoglobin < 7.0 g dl-1) has been studied in 37 pregnant Zambians. Aetiology was usually multiple; 31 (84%) had Plasmodium falciparum malaria 23 (62%) were folate deficient 13 (35%) were iron deficient one had sickle-cell anaemia and one had the acquired immunodeficiency syndrome (AIDS). Folate deficiency was most often secondary to malarial haemolysis: iron deficiency was nutritional but hookworm was contributory in about one-third of patients. The anaemia of malaria and folate deficiency was both more common and more severe than anaemia due to iron deficiency: it was seen in younger women although primigravidae were not overrepresented it occurred earlier in pregnancy and was associated with low birthweight. AIDS must now be included in the differential diagnosis of anaemia in pregnancy. Vigorous antimalarial treatment and prophylaxis are essential in the management and prevention of anaemia in pregnancy. Total dose iron infusion is indicated only when severe iron deficiency anaemia has been proven and must be accompanied by antimalarial therapy and folic acid supplements. Because of the risk of transmission of human immunodeficiency virus it is more important than ever to prevent anaemia and malaria in pregnancy and to give blood transfusion only as a life-saving treatment. (authors)

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