Evaluation of red cell and reticulocyte parameters as indicative of iron deficiency in patients with anemia of chronic disease

نویسندگان

  • Ana Beatriz Barbosa Torino
  • Maria de Fátima Pererira Gilberti
  • Edvilson da Costa
  • Gisélia Aparecida Freire de Lima
  • Helena Zerlotti Wolf Grotto
چکیده

OBJECTIVE The purpose of this study was to evaluate the effectiveness of mature red cell and reticulocyte parameters under three conditions: iron deficiency anemia, anemia of chronic disease, and anemia of chronic disease associated with absolute iron deficiency. METHODS Peripheral blood cells from 117 adult patients with anemia were classified according to iron status, and inflammatory activity, and the results of a hemoglobinopathy investigation as: iron deficiency anemia (n=42), anemia of chronic disease (n=28), anemia of chronic disease associated with iron deficiency anemia (n=22), and heterozygous β thalassemia (n=25). The percentage of microcytic red cells, hypochromic red cells, and levels of hemoglobin content in both reticulocytes and mature red cells were determined. Receiver operating characteristic analysis was used to evaluate the accuracy of the parameters in differentiating between the different types of anemia. RESULTS There was no significant difference between the iron deficient group and anemia of chronic disease associated with absolute iron deficiency in respect to any parameter. The percentage of hypochromic red cells was the best parameter to discriminate anemia of chronic disease with and without absolute iron deficiency (area under curve=0.785; 95% confidence interval: 0.661-0.909, with sensitivity of 72.7%, and specificity of 70.4%; cut-off value 1.8%). The formula microcytic red cells minus hypochromic red cells was very accurate in differentiating iron deficiency anemia and heterozygous β thalassemia (area under curve=0.977; 95% confidence interval: 0.950-1.005; with sensitivity of 96.2%, and specificity of 92.7%; cut-off value 13.8). CONCLUSION The indices related to red cells and reticulocytes have a moderate performance in identifying absolute iron deficiency in patients with anemia of chronic disease.

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Comment on: Evaluation of erythrocyte and reticulocyte parameters as indicative of iron deficiency in patients with anemia of chronic disease☆

The article on the evaluation of the effectiveness of mature red cell and reticulocyte parameters under three conditions: iron deficiency anemia, anemia of chronic disease (ACD), and anemia of chronic disease associated with absolute iron deficiency by Torino et al.1 is very valuable. Automated reticulocyte counts are widely used in the clinical laboratory due to their greater precision, accura...

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عنوان ژورنال:

دوره 36  شماره 

صفحات  -

تاریخ انتشار 2014