{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T05:25:20Z","timestamp":1789190720548,"version":"build-2803163510"},"reference-count":8,"publisher":"Georg Thieme Verlag KG","issue":"S 01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Am J Perinatol"],"published-print":{"date-parts":[[2024,5]]},"abstract":"<jats:p>\n            Objective\u2003Circumvallate placenta has a suggested association with adverse pregnancy outcomes (antenatal bleeding, placental abruption, preterm birth, emergency cesarean, small for gestational age infants, and stillbirth). The aim was to determine if prenatal diagnosis of circumvallate placenta is associated with these adverse pregnancy outcomes.<\/jats:p><jats:p>\n            Study Design\u2003Pregnancies with a singleton gestation prenatally diagnosed with circumvallate placenta between January 1, 2012 and March 31, 2021 were identified. Adverse pregnancy outcomes were obtained. Rates of adverse pregnancy outcomes were compared among those with prenatally diagnosed circumvallate placentas to those without this prenatal diagnosis with a 4:1 control matched group. Pregnancies with known fetal anomalies or other placental abnormalities were excluded. Statistical analyses included Student's t-test and \u03a7\n            2 with p\u2009&lt;\u20090.05 considered significant.<\/jats:p><jats:p>\n            Results\u2003Prenatal ultrasound findings of circumvallate placenta were seen in 179 pregnant people (0.20% of all anatomic US studies and 0.17% of all deliveries). Diagnosis was made at a mean gestational age of 19.8\u2009\u00b1\u20092.4 weeks. Adverse pregnancy outcomes were similar between groups.<\/jats:p><jats:p>\n            Conclusion\u2003Prenatal ultrasound findings of circumvallate placenta do not correlate with adverse pregnancy outcomes. Given overall good prognosis, prenatal diagnosis of circumvallate placenta may not warrant additional surveillance during pregnancy.<\/jats:p><jats:p>\n            Key Points\n          <\/jats:p>","DOI":"10.1055\/s-0043-1770337","type":"journal-article","created":{"date-parts":[[2023,6,19]],"date-time":"2023-06-19T22:47:31Z","timestamp":1687214851000},"page":"e2069-e2072","source":"Crossref","is-referenced-by-count":6,"special_numbering":"S","title":["Prenatal Ultrasound Findings of Circumvallate Placenta and Pregnancy Outcomes"],"prefix":"10.1055","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6484-9850","authenticated-orcid":false,"given":"Christina L.","family":"Herrera","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas"},{"name":"Parkland Health, Dallas, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tina M.","family":"Chu","sequence":"additional","affiliation":[{"name":"Parkland Health, Dallas, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Samantha Mendoza","family":"Stanteen","sequence":"additional","affiliation":[{"name":"University of Texas Southwestern Medical School, Dallas, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elizabeth C.","family":"Twichell","sequence":"additional","affiliation":[{"name":"University of Texas Southwestern Medical School, Dallas, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jennifer","family":"Cardona","sequence":"additional","affiliation":[{"name":"University of Texas Southwestern Medical School, Dallas, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Donald D.","family":"McIntire","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Diane M.","family":"Twickler","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas"},{"name":"Parkland Health, Dallas, Texas"},{"name":"Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Catherine Y.","family":"Spong","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, Texas"},{"name":"Parkland Health, Dallas, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2023,6,19]]},"reference":[{"issue":"05","key":"ref1","first-page":"203","article-title":"Circumvallate placenta","volume":"100","author":"A B Hunt","year":"1947","journal-title":"New Orleans Med Surg J"},{"issue":"03","key":"ref2","doi-asserted-by":"crossref","first-page":"491","DOI":"10.1016\/0002-9378(83)90605-1","article-title":"Circumvallate placenta","volume":"65","author":"R J Paalman","year":"1953","journal-title":"Am J Obstet Gynecol"},{"issue":"01","key":"ref3","doi-asserted-by":"crossref","first-page":"51","DOI":"10.1111\/j.1447-0756.2007.00682.x","article-title":"Clinical significance of pregnancies with circumvallate placenta","volume":"34","author":"S Suzuki","year":"2008","journal-title":"J Obstet Gynaecol Res"},{"key":"ref4","doi-asserted-by":"crossref","first-page":"986230","DOI":"10.1155\/2014\/986230","article-title":"Circumvallate placenta: associated clinical manifestations and complications-a retrospective study","volume":"2014","author":"H Taniguchi","year":"2014","journal-title":"Obstet Gynecol Int"},{"issue":"S 72","key":"ref5","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1111\/aogs.1978.57.s72.11","article-title":"Circumvallate placenta and intrauterine growth retardation","volume":"57","author":"J Rolschau","year":"1978","journal-title":"Acta Obstet Gynecol Scand"},{"key":"ref6","volume-title":"Placental abnormalities","author":"F G Cunningham","year":"2022"},{"issue":"02","key":"ref7","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1007\/s10396-007-0168-5","article-title":"Antenatal screening for circumvallate placenta","volume":"35","author":"S Suzuki","year":"2008","journal-title":"J Med Ultrason"},{"issue":"01","key":"ref8","doi-asserted-by":"crossref","first-page":"16","DOI":"10.1097\/AOG.0000000000000345","article-title":"A revised birth weight reference for the United States","volume":"124","author":"E L Duryea","year":"2014","journal-title":"Obstet Gynecol"}],"container-title":["American Journal of Perinatology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0043-1770337.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,11,5]],"date-time":"2024-11-05T13:33:38Z","timestamp":1730813618000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0043-1770337"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,6,19]]},"references-count":8,"journal-issue":{"issue":"S 01","published-online":{"date-parts":[[2024,5,13]]},"published-print":{"date-parts":[[2024,5]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0043-1770337","archive":["Portico","CLOCKSS"],"relation":{},"ISSN":["0735-1631","1098-8785"],"issn-type":[{"value":"0735-1631","type":"print"},{"value":"1098-8785","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,6,19]]}}}