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[Blood tests in the first trimester of pregnancy: what to screen?]
Insights
Early pregnancy screening improves maternal and newborn health. Key tests include blood work, infectious disease screening (HIV, HBV, HCV, syphilis), and thyroid evaluation, though evidence levels vary.
Area of Science:
- Obstetrics and Gynecology
- Public Health
- Infectious Diseases
Context:
- Maternal and newborn health outcomes are significantly influenced by early pregnancy screening protocols.
- International variations exist in recommended prenatal screening tests, necessitating comparative analysis.
- The "Guide de Consultation Prénatale" (2009) provides a framework for Belgian prenatal care screening.
Purpose:
- To compare and contrast prenatal screening recommendations from various international bodies.
- To identify essential screening tests for low-risk pregnant women during the first antenatal visit.
- To evaluate the evidence base supporting current prenatal screening guidelines.
Summary:
- Recommended initial screening for low-risk pregnancies includes a complete blood count, serological tests for rubella, cytomegalovirus, toxoplasmosis, HIV, Hepatitis B (HBV), Hepatitis C (HCV), and syphilis, alongside thyroid function tests.
- Thyroid function evaluation and screening for infectious diseases are highlighted as crucial components of early antenatal care.
- Fasting glycemia may be included based on the chosen gestational diabetes screening strategy.
Impact:
- Highlights the need for evidence-based updates to prenatal screening guidelines.
- Informs healthcare providers about a comprehensive set of recommended early pregnancy screenings.
- Suggests that future research may refine current screening practices based on higher-level evidence.
Abstract:
Screening in early pregnancy of some potential diseases has led to the improvement of the health of mothers and newborns. Recommended tests vary from one country to another. We presented the screening recommendations of screening proposed in the " Guide de Consultation Prénatale" (published in 2009) by the GGOLFB and ONE and put it in perspective with the recommendations of the KCE, the NICE of England, the HAS of France and the RANZCOG of Australia and New Zealand. It appears that at the first antenatal visit for pregnant women without particular risk factor, a full blood examination, serological screening for rubella, cytomegalovirus, toxoplasmosis, HIV, HBV the HCV and syphilis as well as an evaluation of the thyroid function are recommended screening tests. Finally, depending on the chosen strategy for gestational diabetes screening, a fasting glycemia might be proposed. As these recommendations are mainly based on studies of low level of evidence, future studies could change the currently proposed screening strategies.
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