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Enhancing access to sickle cell disease diagnosis in Africa using the Gazelle® portable digital microchip
Arwa Fraiwan1, Bernard E Ebruke2, Abubakar Gezawa2
1Department of Electrical Engineering, Louisiana Tech University, Ruston, Louisiana, 71272, USA.
Insights
A new portable diagnostic platform for Sickle Cell Disease (SCD) offers accurate, affordable testing in resource-limited areas. This technology aids early diagnosis and patient tracking, crucial for improving child survival rates in sub-Saharan Africa.
Area of Science:
- Medical Diagnostics
- Genetics
- Public Health in Africa
Background:
- Sickle Cell Disease (SCD) is a major genetic blood disorder affecting thousands of children in sub-Saharan Africa (SSA).
- High mortality rates (up to 90% in children under five) and underdiagnosis (estimated 80%) highlight the urgent need for effective interventions.
- Current diagnostic methods are often inaccessible in resource-limited SSA settings, hindering early detection and treatment.
Purpose of the Study:
- To introduce and evaluate a novel, portable diagnostic platform for Sickle Cell Disease (SCD) in Nigeria.
- To address the need for simple, accurate, and affordable diagnostic tools in resource-limited environments.
- To demonstrate the platform's potential for improving patient management and public health responses.
Main Methods:
- A large-scale clinical study was conducted in Nigeria.
- A portable platform integrating novel hemoglobin variant microchip electrophoresis technology was utilized.
- Wireless networks were incorporated for data transmission and connectivity.
Main Results:
- The study successfully implemented and tested a portable SCD diagnostic platform.
- The platform demonstrated potential for rapid diagnosis, facilitating timely clinic referrals.
- Generated reports can inform a comprehensive medical informatics architecture for public health.
Conclusions:
- The developed portable platform offers a viable solution for SCD diagnosis in resource-limited settings.
- This technology can significantly improve early detection, patient tracking, and overall management of Sickle Cell Disease in SSA.
- The platform supports the development of robust health informatics systems for national health strategies.
Abstract:
Sickle Cell Disease (SCD), a genetic blood disorder, claims the lives of thousands of young children in Africa every year. The World Health Organization estimates that 75% of the diagnosed cases of the disease are within sub-Saharan Africa (SSA), with the mortality rate of children under five years of age soaring up to 90% and an estimated 80% of the affected children remain undiagnosed. Early diagnosis and early preventive treatment have been effective in easing the disease's life-threatening manifestations. However, this requires the availability of simple, accurate and affordable diagnostic tools suitable for resource-limited environments where access to proper diagnostics and clinical care remain a challenge and where reliable data on the true prevalence rates of SCD is still needed. Here, we present the results of a large-scale clinical study in Nigeria utilizing a portable platform that pairs a novel hemoglobin variant microchip electrophoresis testing technology and wireless networks to overcome this issue. This platform has great potential to expedite diagnosis, clinic referrals and patient tracking and follow-up. The platform also produces reports for all cases of SCD, which can be used to develop a comprehensive medical informatics architecture that facilitates local and national responses.
