Infant outcome following mid‐trimester amniocentesis: development and physical status at age six months

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Abstract
Summary. 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.