Does elevated fetal heart rate at 12 weeks' gestation predict spontaneous preterm birth?
Elevated fetal heart rate at 12 weeks' gestation may serve as an early first-trimester screening marker for spontaneous preterm birth.
Elevated FHR at the 12-week scan is associated with sPTB, particularly before 34 weeks' gestation. FHR, especially when combined with free-βhCG, may contribute to early first-trimester screening strategies for sPTB.
Morales‐Roselló et al. (Mon,) studied this question.