{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T06:24:38Z","timestamp":1783664678213,"version":"3.55.0"},"reference-count":16,"publisher":"BMJ","issue":"5","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2019,5,11]]},"published-print":{"date-parts":[[2019,5]]},"abstract":"<jats:p>We present a case report of anomalous mitral arcade in a live born former recipient of twin\u2013twin transfusion syndrome. At 33+0\u2009week of gestation fetal ultrasound demonstrated that she had a large mitral insufficiency, decreased movement of the lateral cusp of the mitral valve and dilated left atrium. The twins were delivered by caesarean section at week 33+1\u2009due to fetal distress. The former recipient twin developed decompensated heart failure during her first day of life and was transferred to a surgical paediatric heart centre. Her clinical condition rapidly deteriorated, and she died of congestive heart failure 3\u2009days old. Prenatal signs of anomalous mitral arcade in a recipient of twin\u2013twin transfusion syndrome should warrant preparation of a critically ill neonate, including parental counselling and in utero transfer to surgical paediatric heart centre. There is a surgical treatment option available for neonates, but the experience with this technique is still very limited with a high risk of morbidity and mortality.<\/jats:p>","DOI":"10.1136\/bcr-2019-229237","type":"journal-article","created":{"date-parts":[[2019,5,30]],"date-time":"2019-05-30T06:34:12Z","timestamp":1559198052000},"page":"e229237","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Live born recipient of twin\u2013twin transfusion syndrome with anomalous mitral arcade"],"prefix":"10.1136","volume":"12","author":[{"given":"Siv Steinsmo","family":"\u00d8deg\u00e5rd","sequence":"first","affiliation":[{"name":"Department of Pediatrics, St. Olavs University Hospital, Trondheim, Norway"},{"name":"Department of Circulation and Medical Imaging (ISB), Norwegian University of Science and Technology, Trondheim, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Birgitte","family":"Kahrs","sequence":"additional","affiliation":[{"name":"National Centre of Fetal Medicine (NSFM), St. Olavs University Hospital, Trondheim, Norway"},{"name":"Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, Trondheim, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Astri Maria","family":"Lang","sequence":"additional","affiliation":[{"name":"Department of Neonatal Intensive Care, Oslo University Hospital, Oslo, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siri Ann","family":"Nyrnes","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, St. Olavs University Hospital, Trondheim, Norway"},{"name":"Department of Circulation and Medical Imaging (ISB), Norwegian University of Science and Technology, Trondheim, Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2019,5,29]]},"reference":[{"key":"2025082623351838000_12.5.e229237.1","doi-asserted-by":"crossref","first-page":"664","DOI":"10.1111\/aogs.12871","article-title":"Fetal cardiovascular hemodynamics in twin-twin transfusion syndrome","volume":"95","author":"Wohlmuth","year":"2016","journal-title":"Acta Obstet Gynecol Scand"},{"key":"2025082623351838000_12.5.e229237.2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.110.941443"},{"key":"2025082623351838000_12.5.e229237.3","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.35.2.389"},{"key":"2025082623351838000_12.5.e229237.4","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1155\/2010\/379792","article-title":"The Fetal Heart in Twin-to-Twin Transfusion Syndrome","volume":"2010","author":"Van Mieghem","year":"2010","journal-title":"Int J Pediatr"},{"key":"2025082623351838000_12.5.e229237.5","doi-asserted-by":"crossref","first-page":"354","DOI":"10.1111\/echo.12126","article-title":"Mitral arcade in adults \u2013\u00a0a systematic overview","volume":"30","author":"Hakim","year":"2013","journal-title":"Echocardiography"},{"key":"2025082623351838000_12.5.e229237.6","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1007\/BF02076344","article-title":"Anomalous mitral arcade: echocardiographic and angiographic recognition","volume":"4","author":"Parr","year":"1983","journal-title":"Pediatr Cardiol"},{"key":"2025082623351838000_12.5.e229237.7","doi-asserted-by":"crossref","first-page":"641","DOI":"10.1067\/mje.2001.110783","article-title":"Arcade mitral valve and anomalous left coronary artery originating from the pulmonary artery","volume":"14","author":"Balfour","year":"2001","journal-title":"J Am Soc Echocardiogr"},{"key":"2025082623351838000_12.5.e229237.8","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1016\/0002-9149(69)90409-3","article-title":"Congenital mitral stenosis resulting from anomalous arcade and obstructing papillary muscles. 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