Nigerian Postgraduate Medical Journal

ORIGINAL ARTICLE
Year
: 2019  |  Volume : 26  |  Issue : 1  |  Page : 13--17

Haematological values in steady-state sickle cell anaemia patients and matched heamoglobin AA Controls in a Rural Area of Eastern Gabon


Landry Erik Mombo1, Gaël Mabioko-Mbembo2, Cyrille Bisseye1, Kevin Mbacky4, Fatoumata Thiam4, Apollinaire Edou4 
1 Laboratory of Molecular and Cellular Biology (LABMC), University of Science and Technology of Masuku (USTM), Franceville, Gabon
2 Laboratory of Molecular and Cellular Biology (LABMC), University of Science and Technology of Masuku (USTM), Franceville; Paul Moukambi Regional Hospital Centre of Koula-Moutou (CHRPM), Koula-Moutou, Gabon

Correspondence Address:
Landry Erik Mombo
Laboratory of Molecular and Cellular Biology (LABMC), University of Science and Technology of Masuku (USTM), BP 943, Franceville
Gabon

Background: In Gabon, universal neonatal screening of sickle cell disease is not carried out in rural areas, often leading to late detection of the disease. However, complete blood counts are available in rural areas. Materials and Methods: We evaluated the haematological parameters of 45 homozygous steady-state sickle cell anaemia (SCA) patients and compared them with 45 sex- and age-matched Haemoglobin AA controls in Koula-Moutou, a rural area in Eastern Gabon. Results: Homozygous SCA patients had low erythrocyte values (red blood cells: 2.50 × 1012/L, haemoglobin: 7.20 g/dL and haematocrit: 20.70%) and high leucocyte values (white blood cells: 14.40 × 109/L, lymphocytes: 5.24 × 109/L and monocytes: 1.60 × 109/L). Most of the SCA patients had severe anaemia (67%), normochromia (76%), lymphocytosis (73%) and monocytosis (84%). A haemoglobin level of < 8.5 g/dL together with a leucocyte level above 9.5 × 109 cells/L was used as screening test to detect homozygous SCA patients, with sensitivity of 84.4% and specificity of 97.8%. Conclusion: The values for erythrocyte and leucocyte cell lines of SCA patients in steady state are clearly different from those of the matched HbA/A controls. This makes it possible to set up a tool to detect SCA based on the haemogram in a rural area that does not possess haemoglobin electrophoresis. This tool could be used by healthcare workers in the absence of universal newborn screening for SCA.


How to cite this article:
Mombo LE, Mabioko-Mbembo G, Bisseye C, Mbacky K, Thiam F, Edou A. Haematological values in steady-state sickle cell anaemia patients and matched heamoglobin AA Controls in a Rural Area of Eastern Gabon.Niger Postgrad Med J 2019;26:13-17


How to cite this URL:
Mombo LE, Mabioko-Mbembo G, Bisseye C, Mbacky K, Thiam F, Edou A. Haematological values in steady-state sickle cell anaemia patients and matched heamoglobin AA Controls in a Rural Area of Eastern Gabon. Niger Postgrad Med J [serial online] 2019 [cited 2019 May 19 ];26:13-17
Available from: http://www.npmj.org/article.asp?issn=1117-1936;year=2019;volume=26;issue=1;spage=13;epage=17;aulast=Mombo;type=0