The development of placenta circumvallata carries a significant risk for the development of complications during pregnancy. These complications carry a poor prognosis and include ascending infection and consequent chorioamnionitis due to formation of a hematoma, or oligohydramnios [1], while placental abruption, preterm delivery, and emergency cesarean section have also been reported in women suffering from this condition [1] [2]. Additionally, the abnormality of the placenta impairs normal nutrient delivery (placental hypoplasia, deposition of hemosiderin and infarcts are suspected mechanisms of disease), which is why intrauterine growth restriction, fetal malformations, and even perinatal death was observed in some cases [3]. Persistent vaginal bleeding is one of the most prominent clinical manifestations of placenta circumvallata and is usually present during the first and second trimesters [1], but other authors claim that bleeding may be present during the 3rd trimester as well [3]. Women who eventually had a preterm delivery were more likely experiencing bleeding episodes, predominantly during the second semester, whereas intrauterine growth abnormalities (IUGR) and a small weight and/or height for gestational age were significantly linked with hemorrhage during the third semester [1]. Premature rupture of the membranes (PROM) and chronic fetal lung disease (CLD) may also be induced by this placental abnormality [1] [3].

• Respiratory Disorders

  DISORDERS respiratory distress respiratory distress, including asthma SKELETAL DISORDERS limb anomalies, limb defects lethality, in malformations, no chondrodystrophy, no chromosomopathies Super group: complex plurimalformations neuro-skeletal disorders [studyres.com]

• Overeating

  While we may see a full-term placenta extend over nearly all the uterine cavity, we never see one which extends over only half. [kundoc.com]

  The condition occurs with greater frequency in women who have had multiple pregnancies or are over 35. The exact cause is not known. [medical-dictionary.thefreedictionary.com]

  Uterine scars/defect: The placenta tends to implant over pre-existing uterine scars or defects; when that occurs, the invasive nature of the placenta can lead to abnormally increased vascularity in areas without sufficient uterine muscle to control the [healthtap.com]

  […] platesnis terminas – formų kitimas … Medicininės histologijos ir embriologijos vardynas placenta circumvallata — circumvallate placenta a placenta in which a dense peripheral ring is raised from the surface and the attached membranes are doubled back over [dic.academic.ru]

• Placental Disorder

  ICD-10-CM Codes › O00-O9A Pregnancy, childbirth and the puerperium › O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems › O43- Placental disorders › Circumvallate placenta, unspecified trimester 2016 2017 2018 [icd10data.com]

  Unfortunately, the accuracy of ultrasonography is quite limited when it comes to detecting this placental disorder, as certain reports show a very low rate of diagnosis. [symptoma.com]

  It is the most common placental disorder and occurs in up to 1 out of every 100 pregnancies. Placental abruption is the leading cause of fetal and newborn death. It also causes high rates of premature delivery and fetal growth restriction. [medicalnewstoday.com]

• Fear

  Look at those fat cheeks: We were released from the fetal specialist to our midwife with their blessings and no substantial fears of further complications from this condition. Praise Jesus! [4littlefergusons.wordpress.com]

  But as the months go by, a few of us become aware of the complications that become evident from the various visits to the doctors and the array of tests and ultrasounds that are connected to any pregnancy and then starts the fear for the safety and health [howtocure.com]

  My fear was delivery, what is on the Internet is scary. My complication came post delivery with placenta, I lost over four pints of blood and it took me so long to regain strength. But baby came perfect! [whattoexpect.com]

  Do not fear or be dismayed." Deuteronomy 31:8 [babyhillger.blogspot.com]

  Colon: Constipation – due NPO, fear of bearing down 5. Perineal area – painful – episiotomy site – sims pos, cold compress for immediate pain after 24 hrs, hot sitz bath, not compress sex- when perineum has healed II. [nursescentermcn.blogspot.com]

• Behavior Disorder

  ) Type 2 Excludes mental and behavioral disorders associated with the puerperium ( F53.- ) obstetrical tetanus ( A34 ) postpartum necrosis of pituitary gland ( E23.0 ) puerperal osteomalacia ( M83.0 ) Use Additional code from category Z3A, Weeks of [icd10data.com]

• Forgetful

  I had to quickly set the negative test down to go deal with crying 1-year-old Avery, got busy and totally forgetting all about it. [4littlefergusons.wordpress.com]

The first step in the diagnostic workup is obtaining a detailed patient history that will identify the onset and frequency of symptoms, and their features should immediately point to a fetal-related disorder. The majority of pregnancies in whom placenta circumvallata develops, unfortunately, receive a diagnosis after gross examination of this organ following delivery or termination of pregnancy [1]. Nevertheless, persistent bleeding during pregnancy, miscarriage or development of complications without an identifiable cause must raise suspicion regarding placental abnormalities, and a meticulous examination must be performed, since placenta circumvallata may be difficult to visualize. A rounded placental margin with an irregular, uplifted edge is one of the typical signs detected using standard ultrasonography, but measurement of placental thickness may also be highly useful [4] [5]. Unfortunately, the accuracy of ultrasonography is quite limited when it comes to detecting this placental disorder, as certain reports show a very low rate of diagnosis [4]. The introduction of more advanced imaging studies, however, such as HD live and live silhouette mode imaging, has shown promising results and their use in clinical practice might be of significant benefit [6]. A central placental depression with very thick folded edges that form the irregular placental margins (which are the hallmark of the condition) may be visualized by this procedure, making it highly useful if the diagnosis remains uncertain [6].

1. Taniguchi H, Aoki S, Sakamaki K, et al. Circumvallate Placenta: Associated Clinical Manifestations and Complications—A Retrospective Study Obstet Gynecol Int. 2014; 2014:986230.
2. Suzuki S. Clinical significance of pregnancies with circumvallate placenta. J Obstet Gynaecol Res. 2008 Feb;34(1):51-54.
3. Shen O, Golomb E, Lavie O, Goldberg Y, Eitan R, Rabinowitz RR. Placental shelf - a common, typically transient and benign finding on early second-trimester sonography. Ultrasound Obstet Gynecol. 2007;29(2):192-194.
4. Harris RD, Wells WA, Black WC, et al. Accuracy of prenatal sonography for detecting circumvallate placenta. AJR Am J Roentgenol. 1997;168(6):1603-1608.
5. Suzuki S. Antenatal screening for circumvallate placenta. J Med Ultrason (2001). 2008;35(2):71-73.
6. AboEllail MA, Kanenishi K, Mori N, Kurobe A, Hata T. HDlive imaging of circumvallate placenta. Ultrasound Obstet Gynecol. 2015;46(4):513-514.