FETAL HEART-RATE AT 10 TO 14 WEEKS AND BIRTH-WEIGHT

In 6644 singleton pregnancies resulting in live births, the fetal hear t rate was measured at 10 to 14 weeks of gestation (median 12). There was no significant association between fetal heart rate and birthweigh t. These findings demonstrate that if there is an association between fetal heart rate, birthweight and subsequent development of cardiovasc ular disease the responsible intrauterine insult and/or the adaptive f etal response are not present at 10 to 14 weeks of gestation.