Is macrosomia predictable, and are shoulder dystocia and birth trauma preventable?
The ability to predict macrosomia is limited. The predictive value of clinical estimation of fetal weight alone may be slightly higher than when it is combined with ultrasonography. Because most cases of shoulder dystocia and birth trauma occur in nonmacrosomic infants, these conditions are practically impossible to prevent.
Women with a history of recurrent pregnancy loss are no more likely than are fertile control subjects to have circulating thyroid autoantibodies. Testing for antithyroid antibodies is not clinically useful in the evaluation of patients with a history of recurrent pregnancy loss.