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Infant outcome following mid-trimester amniocentesis: development and physical status at age six months
Insights
Amniocentesis, a prenatal test, does not appear to affect infant development or physical health. However, minor needle marks were observed in some infants following the procedure.
Area of Science:
- Maternal-Fetal Medicine
- Neonatal Development
- Prenatal Diagnostics
Background:
- Maternal age is a significant risk factor for fetal chromosome abnormalities.
- Amniocentesis is a common prenatal diagnostic procedure offered to at-risk pregnancies.
- Potential impacts of amniocentesis on infant neurodevelopment and physical well-being require investigation.
Purpose of the Study:
- To evaluate the influence of amniocentesis on infant mental and motor development.
- To assess the effect of amniocentesis on infant temperament and physical growth.
- To determine the incidence of orthopaedic abnormalities and needle injuries post-amniocentesis.
Main Methods:
- A cohort study comparing 91 infants born to mothers who underwent amniocentesis with 53 infants whose mothers declined the procedure.
- Assessment of infant mental, motor, and temperamental development.
- Evaluation of physical growth, orthopaedic status, and examination for needle site injuries.
Main Results:
- No significant differences were observed in mental development, motor skills, or temperament between the amniocentesis and control groups.
- Amniocentesis did not influence infant physical growth or increase the risk of orthopaedic abnormalities.
- Minor needle marks were noted in several infants following the amniocentesis procedure, indicating a procedural risk.
Conclusions:
- Mid-trimester amniocentesis appears safe concerning infant neurodevelopment, physical growth, and orthopaedic health.
- The procedure carries a minor risk of localized needle site injury.
- Long-term follow-up at 4 and 7 years will further elucidate potential delayed consequences.
Abstract:
Ninety-one infants whose mothers had had amniocentesis, because age increased their risk for a fetal chromosome abnormality, were compared with 53 infants whose mothers chose not to have the test. Mental and motor development and temperament were studied to assess potential influence of amniocentesis on the brain. Physical growth was assessed and the infants were examined for orthopaedic abnormalities and needle injury. The results indicated that amniocentesis does not appear to influence infant mental and motor development, temperament, physical growth or the risk of orthopaedic abnormalities. However, amniocentesis is not entirely free of risk because several of the infants had needle marks. Reassessment of the cohort at age 4 and 7 years and will provide information on the potential longer term consequences of mid-trimester amniocentesis.