{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,11,13]],"date-time":"2023-11-13T00:32:59Z","timestamp":1699835579468},"reference-count":21,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2005,12,1]],"date-time":"2005-12-01T00:00:00Z","timestamp":1133395200000},"content-version":"vor","delay-in-days":9069,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Clinical Ultrasound"],"published-print":{"date-parts":[[1981,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We examined M\u2010mode echocardiograms on 35 patients with catheterization\u2010proven mitral stenosis and normal sinus rhythm to determine whether the presence or absence of an A wave on the mitral echogram predicted mild versus severe mitral stenosis. Mitral valve area (MVA) was determined by the Gorlin formula. Presence of a mitral A wave was defined as 2 mm or greater anterior motion (after a well\u2010defined F point) of the anterior mitral leaflet. In six of 35 patients, the presence of an A wave was equivocal. Of the remaining 29 patients, 16 had no A wave and mean MVA = 1.18 cm<jats:sup>2<\/jats:sup> \u00b1 0.45 (SD), and 13 patients had a definite A wave and mean MVA = 2.04 cm<jats:sup>2<\/jats:sup> \u00b1 0.71. There was a significant difference (p &lt; 0.001) between the mean MVA for patients with and without definite A waves. No patients with a definite A wave had an MVA less than 1.2 cm<jats:sup>2<\/jats:sup>. An A wave on the mitral echogram (in sinus rhythm) excludes severe mitral stenosis; when an A wave is not seen, no definite statement concerning severity of mitral stenosis can be made.<\/jats:p>","DOI":"10.1002\/jcu.1870090209","type":"journal-article","created":{"date-parts":[[2007,2,28]],"date-time":"2007-02-28T01:39:50Z","timestamp":1172626790000},"page":"91-95","source":"Crossref","is-referenced-by-count":0,"title":["Mitral valve A wave and mitral stenosis"],"prefix":"10.1002","volume":"9","author":[{"given":"Ali","family":"Dabestani","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David J.","family":"Skorton","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John S.","family":"Child","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Janine","family":"Krivokapich","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,12]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.27.4.503"},{"issue":"2","key":"e_1_2_1_3_2","first-page":"11","article-title":"Preoperative determination of the functional anatomy of the mitral valve","volume":"32","author":"Joyner CR","year":"1965","journal-title":"Circulation"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1259\/0007-1285-37-444-920"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(67)90262-7"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.195.3.161"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(67)90259-7"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(67)90258-5"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.29.5.788"},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.32.3.344"},{"key":"e_1_2_1_11_2","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.35.5.480"},{"key":"e_1_2_1_12_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.52.4.664"},{"key":"e_1_2_1_13_2","first-page":"199A","article-title":"Echocardiographic misdiagnosis of severity of mitral stenosis (abstract)","volume":"23","author":"Nanda NC","year":"1975","journal-title":"Clin Res"},{"key":"e_1_2_1_14_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.51.5.827"},{"key":"e_1_2_1_15_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.55.1.120"},{"key":"e_1_2_1_16_2","doi-asserted-by":"publisher","DOI":"10.7326\/0003-4819-88-3-337"},{"key":"e_1_2_1_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(79)90014-6"},{"key":"e_1_2_1_18_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.37.5.789"},{"key":"e_1_2_1_19_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.51.3.511"},{"key":"e_1_2_1_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(51)90002-6"},{"key":"e_1_2_1_21_2","first-page":"269","volume-title":"Cardiac Function in Health and Disease","author":"Marshall RJ","year":"1968"},{"key":"e_1_2_1_22_2","first-page":"971","volume-title":"The Heart, Arteries and Veins","author":"Schlant RC","year":"1978"}],"container-title":["Journal of Clinical Ultrasound"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fjcu.1870090209","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jcu.1870090209","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,11,12]],"date-time":"2023-11-12T05:13:41Z","timestamp":1699766021000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jcu.1870090209"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1981,2]]},"references-count":21,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1981,2]]}},"alternative-id":["10.1002\/jcu.1870090209"],"URL":"https:\/\/doi.org\/10.1002\/jcu.1870090209","archive":["Portico"],"relation":{},"ISSN":["0091-2751","1097-0096"],"issn-type":[{"value":"0091-2751","type":"print"},{"value":"1097-0096","type":"electronic"}],"subject":[],"published":{"date-parts":[[1981,2]]}}}