{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T07:06:41Z","timestamp":1762067201392},"reference-count":0,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation"],"published-print":{"date-parts":[[1973,8]]},"abstract":"<jats:p>Eighty-seven patients with proven mitral leaflet prolapse were studied emphasizing cardiodynamics and left ventricular asynergy. Significant associated features were female preponderance (83%), skeletal anomalies (pectus excavatum, straight back, scoliosis, narrow antero-posterior diameter of the chest), and anomalous coronary arteries (cork-screw patterns, short left main coronary artery, anomalous origin of the coronary arteries). Prolapse of the tricuspid leaflets was found in 15 (54%) who had right ventriculography. Five types of abnormal left ventricular systolic contraction patterns were seen in 82% of the cases and these were categorized as: 1) \"ballerina foot\" pattern (vigorous posteromedial contraction with anterior convexity), 2) \"hour glass\" pattern (vigorous ring-like contraction involving the middle portion of the left ventricle), 3) inadequate long axis shortening, 4) posterior akinesis, and 5) cavity obliteration pattern. The over-all left ventricular performance was normal generally, as indicated by normal values for functional parameters including left ventricular end-diastolic pressure, cardiac index, ejection fraction, contractility index (stroke work per end-diastolic volume) and pre-ejection period\/left ventricular ejection time (PEP\/LVET). The myocardial component of the syndrome of prolapsed mitral (and\/or tricuspid) leaflets is expressed as asynergistic patterns of ventricular motion and usually does not impair over-all cardiac dynamics.<\/jats:p>","DOI":"10.1161\/01.cir.48.2.287","type":"journal-article","created":{"date-parts":[[2012,6,11]],"date-time":"2012-06-11T23:56:43Z","timestamp":1339459003000},"page":"287-297","update-policy":"http:\/\/dx.doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":129,"title":["Left Ventricular Abnormalities in Prolapsed Mitral Leaflet Syndrome"],"prefix":"10.1161","volume":"48","author":[{"given":"GREGORY","family":"SCAMPARDONIS","sequence":"first","affiliation":[{"name":"From the Department of Cardiology, Deborah Heart and Lung Center, Browns Mills, New Jersey."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"SING SAN","family":"YANG","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Deborah Heart and Lung Center, Browns Mills, New Jersey."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"VLADIR","family":"MARANHA\u0303O","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Deborah Heart and Lung Center, Browns Mills, New Jersey."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"HARRY","family":"GOLDBERG","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Deborah Heart and Lung Center, Browns Mills, New Jersey."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ALDEN S.","family":"GOOCH","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, Deborah Heart and Lung Center, Browns Mills, New Jersey."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"276","container-title":["Circulation"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ahajournals.org\/doi\/pdf\/10.1161\/01.CIR.48.2.287","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,5,12]],"date-time":"2024-05-12T13:56:02Z","timestamp":1715522162000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ahajournals.org\/doi\/10.1161\/01.CIR.48.2.287"}},"subtitle":["Review of Eighty-Seven Cases"],"short-title":[],"issued":{"date-parts":[[1973,8]]},"references-count":0,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1973,8]]}},"alternative-id":["10.1161\/01.CIR.48.2.287"],"URL":"https:\/\/doi.org\/10.1161\/01.cir.48.2.287","relation":{},"ISSN":["0009-7322","1524-4539"],"issn-type":[{"value":"0009-7322","type":"print"},{"value":"1524-4539","type":"electronic"}],"subject":[],"published":{"date-parts":[[1973,8]]},"assertion":[{"value":"1973-02-13","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"1973-04-09","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"1973-08-01","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}