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1.
Niger Med J ; 60(3): 161-164, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31543570

RESUMEN

INTRODUCTION: Sub-Saharan Africa accounts for 25% of the estimated global 325 million people with chronic hepatitis B and C virus infections. Weak blood transfusion systems facilitate the spread of both hepatitis B and C virus infections. This is worsened by the absence of sustainable quality assurance programs and perennial shortage of sensitive screening kits. We aim to compare the validity of rapid diagnostic tests (RDTs) with the World Health Organization-recommended quality-assured enzyme-linked immunosorbent assay (ELISA) screening method for these viruses. MATERIALS AND METHODS: We conducted a cross-sectional study on consecutive blood donor samples. Two hundred and sixty-four blood donor samples screened for hepatitis B and C viruses using RDTs were retested at a National blood transfusion service, Kaduna, Nigeria. Data were analyzed using OpenEpi version 3.01 to determine the sensitivity, specificity, and predictive values of RDTs versus ELISA. RESULTS: The sensitivities of the RDTs at 95% confidence interval (CI) were low - 40% (19.8-64.3) and 50.0% (18.8-81.2) - for hepatitis B surface antigen (HBsAg) and hepatitis C virus (HCV) antibody, respectively. The specificities and 95% CI were high - 99.9% (97.8-99.9) and 100.0% (98.5-100) for HBsAg and HCV antibody, respectively. CONCLUSION: Predonation RDTs screening of blood donor samples for hepatitis B virus and HCV in hospital donation units performed poorly compared to quality-assured ELISA screening in Kaduna. The risk of transmitting viral hepatitis through blood transfusion still exists. We recommend quality-assured ELISA screening of all donated units for HBsAg and HCV antibody to reduce the risk of these transfusion-transmitted infections.

2.
Niger. med. j. (Online) ; 60(3): 161-164, 2019. tab
Artículo en Inglés | AIM (África) | ID: biblio-1267651

RESUMEN

ntroduction: Sub-Saharan Africa accounts for 25% of the estimated global 325 million people with chronic hepatitis B and C virus infections. Weak blood transfusion systems facilitate the spread of both hepatitis B and C virus infections. This is worsened by the absence of sustainable quality assurance programs and perennial shortage of sensitive screening kits. We aim to compare the validity of rapid diagnostic tests (RDTs) with the World Health Organization-recommended quality-assured enzyme-linked immunosorbent assay (ELISA) screening method for these viruses. Materials and Methods: We conducted a cross-sectional study on consecutive blood donor samples. Two hundred and sixty-four blood donor samples screened for hepatitis B and C viruses using RDTs were retested at a National blood transfusion service, Kaduna, Nigeria. Data were analyzed using OpenEpi version 3.01 to determine the sensitivity, specificity, and predictive values of RDTs versus ELISA. Results: The sensitivities of the RDTs at 95% confidence interval (CI) were low ­ 40% (19.8­64.3) and 50.0% (18.8­81.2) ­ for hepatitis B surface antigen (HBsAg) and hepatitis C virus (HCV) antibody, respectively. The specificities and 95% CI were high ­ 99.9% (97.8­99.9) and 100.0% (98.5­100) for HBsAg and HCV antibody, respectively. Conclusion: Predonation RDTs screening of blood donor samples for hepatitis B virus and HCV in hospital donation units performed poorly compared to quality-assured ELISA screening in Kaduna. The risk of transmitting viral hepatitis through blood transfusion still exists. We recommend quality-assured ELISA screening of all donated units for HBsAg and HCV antibody to reduce the risk of these transfusion-transmitted infections


Asunto(s)
Donantes de Sangre , Pruebas Diagnósticas de Rutina , Nigeria
3.
Bone Marrow Res ; 2016: 7062630, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27774320

RESUMEN

Background. Sickle cell anaemia (SCA) is an inherited condition whose clinical manifestations arise from the tendency of haemoglobin to polymerize and deform red blood cells into characteristic sickle shape. Allogeneic bone marrow transplantation offers a cure. The aim of this study was to determine the level of awareness, knowledge, and acceptance of this beneficial procedure in Nigeria. Materials and Methods. This multicentre cross-sectional study was conducted in 7 tertiary hospitals in Nigeria in 2015. Approval was obtained from each institution's research and ethics committee. A pretested structured questionnaire was administered to respondents aged 18 years and above and to the parents or guardians of those below 18 years of age. Results. There were 265 respondents comprising 120 males and 145 females. One hundred and seventy-one (64.5%) respondents were aware of BMT for the treatment of SCA. About 67.8% (116 of 171) of those who were aware believed SCA can be cured with BMT (p = 0.001) and 49.7% (85 of 171) of the respondents accepted BMT (p = 0.001). Conclusion. Awareness of BMT in Nigeria is low when compared with reports from developed countries. The knowledge is poor and acceptance is low. With adequate information, improved education, and psychological support, more Nigerians will embrace BMT.

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