Prenatal and newborn screening for hemoglobinopathies.

Area of Science:

• Genetics
• Hematology
• Public Health

Background:

• Hemoglobinopathies are genetic blood disorders caused by mutations in alpha- and beta-globin genes.
• Rising immigration from high-risk populations necessitates widespread screening programs.
• Screening program structures (prenatal/postnatal, universal/selective) vary internationally.

Purpose of the Study:

• To review current approaches for hemoglobinopathy screening.
• To summarize laboratory methods for carrier detection, prenatal diagnosis, and newborn screening.
• To highlight advancements in molecular testing for diverse populations.

Main Methods:

• Review of existing literature on hemoglobinopathy screening programs and laboratory techniques.
• Analysis of different screening strategies implemented in Europe, North America, and the United States.
• Examination of molecular testing advancements for diagnosing complex hemoglobinopathies.

Main Results:

• Hemoglobinopathy screening programs are increasingly adopted, but their implementation and structure vary significantly.
• Laboratory methods are tailored to population prevalence and screening type.
• Molecular testing has improved diagnosis of complex disorders in diverse ethnic groups.

Conclusions:

• Effective hemoglobinopathy screening requires tailored approaches based on local needs and available technology.
• Standardization of screening protocols and integration of advanced molecular diagnostics are crucial.
• Continued research and implementation of screening programs are vital for managing hemoglobinopathies globally.