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Neonatal screening for sickle cell diseases in Camberwell: results and recommendations of a two year pilot study
Insights
Neonatal screening for sickle cell disease (SCD) and hemoglobin C disease in Afro-Caribbean infants identified significant disease and carrier states. Early detection and management are crucial for reducing childhood mortality and morbidity.
Area of Science:
- Hematology
- Public Health
- Genetics
Background:
- Sickle cell diseases (SCD) represent a significant health burden within Afro-Caribbean populations.
- Early neonatal detection and prophylactic interventions are vital for mitigating childhood mortality and morbidity associated with SCD.
Purpose of the Study:
- To analyze the outcomes of the initial two years of neonatal cord blood screening for hemoglobinopathies in the Camberwell health area.
- To determine the incidence of sickle cell disease, hemoglobin C disease, and carrier states among non-white infants.
Main Methods:
- Screening of cord blood samples from 2202 non-white infants within the Camberwell health area.
- Identification and quantification of sickle cell disease (HbSS), hemoglobin C disease (HbCC), sickle cell trait (HbAS), and hemoglobin C trait (HbAC).
Main Results:
- Thirteen cases of sickle cell disease and two cases of hemoglobin C disease were diagnosed.
- Sickle cell trait (HbAS) was identified in 11.9% and hemoglobin C trait (HbAC) in 4.1% of screened Afro-Caribbean infants.
- Incidence rates for both disease and carrier states were notably higher among West African infants compared to Caribbean infants.
Conclusions:
- Neonatal screening effectively identifies infants with sickle cell disease and related hemoglobinopathies.
- The findings underscore the higher prevalence of these conditions in specific ethnic groups, necessitating targeted screening programs.
- A comprehensive care plan is essential to address the broader implications of widespread screening and management of these genetic blood disorders.
Abstract:
The sickle cell diseases are a major health problem for Afro-Caribbean peoples. Neonatal detection and prophylactic management can reduce mortality and morbidity in childhood. A study was therefore conducted analysing the results of the first two years of cord blood screening in the Camberwell health area. Thirteen cases of sickle cell disease and two of haemoglobin (Hb)C disease were identified among 2202 non-white infants screened. The carrier state, sickle cell trait (HbAS), was present in 11.9% and HbC trait (HbAC) in 4.1% of Afro-Caribbean infants. The incidence of disease and of carrier states was much higher in West Africans than in Caribbeans. The wider implications of screening and the need for a comprehensive plan of care are emphasised.