Circumvallate placenta is it dangerous even if baby seems healthy?

doctor supervision: Circumvallate placenta is a placental disease in which the fetal membranes (chorion and amnion) 'double back' on the fetal side around the edge of the placenta. Complete circumvallate placenta occurs in approximately 1% of pregnancies. The condition is associated with perinatal complications such as placental abruption, oligohydramnios, abnormal cardiotocography, preterm birth, and miscarriage.