Spontaneous complete chorioamniotic membrane separation

Abstract

Background: Chorioamniotic membrane separation (CAS) is an uncommon sonographic finding, but its presence is associated with significant perinatal morbidity and mortality. This condition usually occurs following fetal invasive procedures. Apart from the association with Down syndrome, other complications include preterm labour, premature rupture of membranes, IUGR, fetal malformation and fetal death. Such pregnancies require close fetal surveillance and occasionally inpatient management. Case: We present a case of spontaneous complete CAS and preterm amniorrhexis, and review the current literature on the topic. Conclusion: Spontaneous complete chorioamniotic membrane separation is associated with pregnancy complications and must be monitored as high risk.

Key words: Chorioamniotic; Detachment; Spontaneous; Amniorrhexis;  Chorionic surface; Placental cord insertion