Diagnostic Accuracy of HemotypeSC as a Point-of-Care Testing Device for Sickle Cell Disease: Findings from a Southwestern State in Nigeria and Implications for Patient Care in Resource-Poor Settings of sub-Saharan Africa

被引:9
作者
Olatunya, Oladele S. [1 ,2 ]
Albuquerque, Dulcinea M. [2 ]
Fagbamigbe, Adeniyi F. [3 ]
Faboya, Opeyemi A. [1 ]
Ajibola, Ayotunde E. [4 ]
Babalola, Oluwatoyin A. [3 ]
Adebisi, Adewale O. [4 ]
Falusi, Adeyinka G. [3 ]
Adekile, Adekunle [5 ]
Costa, Fernando F. [2 ]
机构
[1] Ekiti State Univ, Ado Ekiti, Ekiti State, Nigeria
[2] Univ Estadual Campinas, Campinas, Brazil
[3] Univ Ibadan, Ibadan, Oyo, Nigeria
[4] Ekiti State Univ, Teaching Hosp, Ado Ekiti, Ekiti State, Nigeria
[5] Kuwait Univ, Kuwait, Kuwait
基金
巴西圣保罗研究基金会;
关键词
sickle cell disease; early diagnosis; point-of care testing; sub-Saharan Africa; Nigeria; HEMOGLOBIN; CHILDREN; COHORT;
D O I
10.1177/2333794X211016789
中图分类号
R72 [儿科学];
学科分类号
100202 ;
摘要
This study aimed to determine the performance of a rapid, point-of-care testing device (HemotypeSC)(TM) for diagnosing sickle cell disease (SCD) relative to 2 commonly-used methods compared to DNA polymerase chain reaction (PCR) as the reference standard. The diagnostic performance of (HemotypeSC)(TM) in diagnosing SCD and determining various other Hb genotypes relative to high performance liquid chromatography (HPLC) and cellulose acetate Hb electrophoresis in alkaline buffer (CAE) was investigated among 156 participants aged 4 to 23 years in Ekiti, Southwest Nigeria. PCR was considered as the reference method/gold standard. The sensitivity and specificity for SS, SC, AS, AC, and AA genotypes by HemotypeSC and HPLC when compared with PCR, were each 100%. Similarly, their positive and negative predictive values were each 100%. However, sensitivity and specificity for identifying these Hb genotypes by CAE were 100, 100, 96.5, 0, 99.2%, and 99, 100, 92.9, 0, 91.7%. Also, CAE did not identify any of the 2 HbAC individuals that were correctly identified by PCR and both HemotypeSC, and HPLC, thus representing 100% HbAC misdiagnosis. In conclusion, this study shows that HemotypeSC has perfect concordance with PCR and 100% accuracy in diagnosing SCD in the population tested. Its ease of use, accuracy and other attributes make it suitable for use in sub-Saharan Africa for rapid determination of Hb genotypes.
引用
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页数:10
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