{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,5,15]],"date-time":"2024-05-15T03:08:52Z","timestamp":1715742532714},"reference-count":24,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2009,2,4]],"date-time":"2009-02-04T00:00:00Z","timestamp":1233705600000},"content-version":"vor","delay-in-days":9075,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical Cardiology"],"published-print":{"date-parts":[[1984,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The significance of geometrical changes of the heart for the development of mitral valve prolapse (MVP) was studied by echocardiograms and chest x\u2010ray films in 58 cases of progressive muscular dystrophy (PMD). The incidence of MVP was significantly higher (p&lt;0.001) incases where the thoracic spine was straight or lordotic compared with cases of kyphotic thoracic spine. The flattening of the thorax associated with deformation of the thoracic spine was correlated with the left atrial dimension and left ventricular dimension (r=0.62, r=0.37, respectively; p&lt;0.001), and MVP developed predominantly in cases with flattened thorax and small left atrial or left ventricular dimensions. The left atrial and left ventricular dimensions were significantly smaller in cases with MVP compared to cases without MVP (p&lt;0.001, p&lt;0.005, respectively). When both the left atrial and the left ventricular dimension shortened to certain levels, MVP was observed in almost all cases. From these results, it was suggested that the portion from the left atrium to the left ventricle was pressed by the forward bending of the thoracic spine, and the subsequent geometrical changes of the mitral ring and the left ventricle could produce redundancy of the chorda tendinea of the mitral valve, resulting in the occurrence of MVP.<\/jats:p>","DOI":"10.1002\/clc.4960070403","type":"journal-article","created":{"date-parts":[[2009,2,5]],"date-time":"2009-02-05T01:12:24Z","timestamp":1233796344000},"page":"198-204","source":"Crossref","is-referenced-by-count":13,"title":["Mitral valve prolapse related to geometrical changes of the heart in cases of progressive muscular dystrophy"],"prefix":"10.1002","volume":"7","author":[{"given":"Y.","family":"Yazawa","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2009,2,4]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(75)90028-4"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.59.6.1299"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(75)90863-2"},{"key":"e_1_2_1_5_1","first-page":"261","article-title":"Outline for the study of scoliosis. Instructional course lectures","volume":"5","author":"Cobb JT","year":"1948","journal-title":"American Academy of Orthopedic Surgeons"},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM197212142872403"},{"key":"e_1_2_1_7_1","first-page":"119","volume-title":"The Heart. Update IV","author":"Gordon AE","year":"1979"},{"key":"e_1_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.1378\/chest.67.2.132"},{"key":"e_1_2_1_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(76)90144-2"},{"key":"e_1_2_1_10_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.53.3.464"},{"key":"e_1_2_1_11_1","first-page":"605","article-title":"Communications interauriculaires de type ostium secundum avec ensuffisance mitrale","volume":"69","author":"Pauly\u2010Laubry G","year":"1976","journal-title":"Arch Mal Coeur"},{"key":"e_1_2_1_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(71)90020-2"},{"key":"e_1_2_1_13_1","first-page":"II\u201097","article-title":"Echocar\u2010diographic demonstration of mitral valve prolapse in muscular dystrophy","volume":"54","author":"Reeves W","year":"1976","journal-title":"Circulation"},{"key":"e_1_2_1_14_1","doi-asserted-by":"publisher","DOI":"10.1001\/archneur.1980.00500540051004"},{"key":"e_1_2_1_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(75)90864-4"},{"key":"e_1_2_1_16_1","doi-asserted-by":"crossref","first-page":"116","DOI":"10.1542\/peds.63.1.116","article-title":"Mitral valve prolapse syndrome in children with Duchenne's progressive muscular dystrophy","volume":"63","author":"Sanyal SK","year":"1979","journal-title":"Pediatrics"},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.48.2.287"},{"key":"e_1_2_1_18_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.61.5.888"},{"key":"e_1_2_1_19_1","first-page":"689","article-title":"Echocardiograms in progressive muscular dystrophy","volume":"8","author":"Shimada H","year":"1978","journal-title":"J Cardiography"},{"key":"e_1_2_1_20_1","first-page":"553","article-title":"Distinctive anthropometric characteristics of women with mitral valve prolapse","volume":"71","author":"Shutte JE","year":"1981","journal-title":"Am J Med"},{"key":"e_1_2_1_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(79)90429-0"},{"key":"e_1_2_1_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(74)90260-4"},{"key":"e_1_2_1_23_1","doi-asserted-by":"publisher","DOI":"10.7326\/0003-4819-85-1-19"},{"key":"e_1_2_1_24_1","first-page":"857","article-title":"The causative mechanisms of mitral valve prolapse in progressive muscular dystrophy. Thorax and thoracic spine deformity and left ventricular dysfunction","volume":"46","author":"Yazawa Y","year":"1982","journal-title":"Jpn Circ J"},{"key":"e_1_2_1_25_1","first-page":"327","article-title":"Geometrical changes of heart influenced by the deformed thoracic spine and thoraces","volume":"41","author":"Yazawa Y","year":"1982","journal-title":"Jpn J Med Ultrasound (Proceedings"}],"container-title":["Clinical Cardiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fclc.4960070403","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/clc.4960070403","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,19]],"date-time":"2023-10-19T22:29:32Z","timestamp":1697754572000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/clc.4960070403"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1984,4]]},"references-count":24,"journal-issue":{"issue":"4","published-print":{"date-parts":[[1984,4]]}},"alternative-id":["10.1002\/clc.4960070403"],"URL":"https:\/\/doi.org\/10.1002\/clc.4960070403","archive":["Portico"],"relation":{},"ISSN":["0160-9289","1932-8737"],"issn-type":[{"value":"0160-9289","type":"print"},{"value":"1932-8737","type":"electronic"}],"subject":[],"published":{"date-parts":[[1984,4]]}}}