{"title":"左心房二尖瓣索，干扰二尖瓣小叶运动，诱发二尖瓣返流。","authors":"Toru Kameda, Tomohiro Mizuno, Kota Kawada, Tsubasa Yoshikawa, Koichi Sugiyama, Yuzo Katayama, Takeshiro Fujii","doi":"10.5761/atcs.cr.25-00030","DOIUrl":null,"url":null,"abstract":"<p><p>Left atrial mitral valve chorda (LAMVC) is a rare congenital cardiac anomaly. The abnormal tissue band, like a mitral valve chorda, is attached to the left atrial wall on one side and mostly to the mitral valve leaflet on the other side and the band sometimes disturbs the mitral leaflet motion, followed by mitral regurgitation (MR). We encountered a case with a LAMVC which originated from a papillary muscle and attached to the posterior mitral annulus over the posterior leaflet and caused MR due to restricted mitral leaflet motion.</p>","PeriodicalId":93877,"journal":{"name":"Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia","volume":"31 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11885933/pdf/","citationCount":"0","resultStr":"{\"title\":\"Left Atrial Mitral Valve Chordae Which Disturbed the Mitral Leaflet Motion and Induced Mitral Regurgitation.\",\"authors\":\"Toru Kameda, Tomohiro Mizuno, Kota Kawada, Tsubasa Yoshikawa, Koichi Sugiyama, Yuzo Katayama, Takeshiro Fujii\",\"doi\":\"10.5761/atcs.cr.25-00030\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Left atrial mitral valve chorda (LAMVC) is a rare congenital cardiac anomaly. The abnormal tissue band, like a mitral valve chorda, is attached to the left atrial wall on one side and mostly to the mitral valve leaflet on the other side and the band sometimes disturbs the mitral leaflet motion, followed by mitral regurgitation (MR). We encountered a case with a LAMVC which originated from a papillary muscle and attached to the posterior mitral annulus over the posterior leaflet and caused MR due to restricted mitral leaflet motion.</p>\",\"PeriodicalId\":93877,\"journal\":{\"name\":\"Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia\",\"volume\":\"31 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11885933/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5761/atcs.cr.25-00030\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5761/atcs.cr.25-00030","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Left Atrial Mitral Valve Chordae Which Disturbed the Mitral Leaflet Motion and Induced Mitral Regurgitation.
Left atrial mitral valve chorda (LAMVC) is a rare congenital cardiac anomaly. The abnormal tissue band, like a mitral valve chorda, is attached to the left atrial wall on one side and mostly to the mitral valve leaflet on the other side and the band sometimes disturbs the mitral leaflet motion, followed by mitral regurgitation (MR). We encountered a case with a LAMVC which originated from a papillary muscle and attached to the posterior mitral annulus over the posterior leaflet and caused MR due to restricted mitral leaflet motion.
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