Complete Chorioamniotic Membrane Separation Research Articles

Delayed Complete Chorioamniotic Membrane Separation in the Third Trimester Following a Motor Vehicle Collision

Complete separation of the amnion and chorion is a rare pregnancy complication. The proposed causes for chorioamniotic separation are failure of fusion,spontaneous separation, and iatrogenically from invasive prenatal pro-cedures. We present the first reported case of delayed complete chorioamniotic separation following a motor vehicle collision. Close fol-low-up with serial fetal ultrasounds resulted in a favorable outcome

EP15.26: Complete chorioamniotic membrane separation associated with bilateral club foot

EP15.26: Complete chorioamniotic membrane separation associated with bilateral club foot

A Case of Complete Chorioamniotic Membrane Separation after Amniocentesis Resulted with a Healthy Term Delivery

Separation between amniotic and chorionic membranes is a normal sonographic finding before 14th weeks of gestation. As pregnancy progresses, these membranes fuse and chorionic cavity becomes obliterated. Chorioamniotic membrane separation may occur spontaneously or as a complication of invasive intrauterine procedures. Following invasive fetal intervention, resulting in a condition referred to as chorioamniotic membrane separation (CMS) and it is reported to be associated with adverse perinatal fetal outcomes. Here we present a case of CMS that had occurred after a second trimester amniocentesis and resulted with the delivery of a term healthy baby. Complete post-interventional CMS may complicate pregnancy progression. Although there are no established guidelines to follow, close follow-up may CMS can be managed to be a morbid, rather than mortal condition.

Complete chorioamniotic membrane separation with constrictive amniotic band sequence and partially extraamniotic pregnancy - serial ultrasound documentation and successful fetoscopic intervention

Background: Chorioamniotic membrane separation (CMS) may result in constrictive amniotic bands around fetal limbs, the umbilical cord, as well as preterm rupture of membranes. Fetoscopic band release can be performed but may encounter difficult anatomical conditions.

P06.12: A successful management of spontaneous complete chorioamniotic membrane separation

<scp>P06</scp>.12: A successful management of spontaneous complete chorioamniotic membrane separation

A Case Report of Complete Chorioamniotic Membrane Separation

We describe a patient with complete chorioamniotic membrane separation (CMS). During embryologic development, the chorionic and amniotic membranes each arise from their own germ layers and form a celomic cavity in the first trimester of pregnancy. By the early second trimester, the cavity has shrunk and the membranes become conjugated. However, the membranes may separate spontaneously or because of an invasive intrauterine procedure. This pathologic condition is referred to as CMS. Extensive CMS can lead to miscarriage, fetal death, neonatal death, amniotic band syndrome, umbilical cord complications, and preterm delivery. In this case, CMS was detected in the 29th week of pregnancy with a routine ultrasonographic examination in the absence of a distinct non-reassuring fetal status or an abnormality of the intrauterine environment. The patient had undergone amniocentesis at 16 weeks of pregnancy for chromosomal analysis. Ultrasonography showed a floating membranous structure in almost every view of the intra-amniotic cavity. Thus, complete CMS was believed to have occurred. Therefore, precautionary checkups and examinations were periodically performed. Childbirth took place uneventfully by means of elective cesarean section in the 37th week of pregnancy. Because pathological examination showed complete CMS, the validity of the prenatal diagnosis was confirmed.

Spontaneous complete chorioamniotic membrane separation

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

A case of restrictive dermopathy with complete chorioamniotic membrane separation caused by a novel homozygous nonsense mutation in the ZMPSTE24 gene

A case of restrictive dermopathy with complete chorioamniotic membrane separation caused by a novel homozygous nonsense mutation in the <i>ZMPSTE24</i> gene

Complete chorioamniotic membrane separation with fetal restrictive dermopathy in two consecutive pregnancies

To describe an instance of complete chorion-amnion membrane separation with fetal restrictive dermopathy in two consecutive pregnancies. We performed prenatal ultrasounds in two consecutive pregnancies and evaluated gross and microscopic postnatal findings. The first pregnancy ended at 32 weeks of gestation with spontaneous chorioamniotic membrane separation and preterm premature rupture of membranes. The mother delivered an abnormal male infant with generalized fixed joint contractures, rigid and shiny skin, skin laceration around the neck, a rounded and opened mouth, and palpebral conjunctival eversion. The subsequent pregnancy was also complicated by spontaneous complete chorioamniotic membrane separation, oligohydramnios, and fetal growth restriction at 26 + 3 weeks of gestation. A immaturely born second baby also carried multiple anomalies similar to those of the first. Both infants died shortly after birth. After microscopic examination of the skin, we diagnosed the infant as restrictive dermopathy. Complete separation of the chorion-amnion membrane may be regarded as a serious prenatal condition. Restrictive dermopathy or skin disorders caused by defects in collagen or elastic tissue metabolism may be one of the many causes of chorion-amnion separation.