{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,4]],"date-time":"2025-09-04T13:57:58Z","timestamp":1756994278489},"reference-count":7,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2009,2,5]],"date-time":"2009-02-05T00:00:00Z","timestamp":1233792000000},"content-version":"vor","delay-in-days":8316,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical Cardiology"],"published-print":{"date-parts":[[1986,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Severe aortic regurgitation may be associated with premature aortic valve opening. Several possible etiologies for this diastolic opening have been suggested. We present a patient with hemodynamic data, M\u2010mode and 2\u2010D echocardiography in the setting of severe aortic regurgitation and diastolic aortic valve opening. Our data lead us to conclude that aortic valve opening in this situation is neither from passive flotation nor dependent on atrial systole. We believe that active ventricular recoil mechanisms can facilitate increases in diastolic ventricular pressure which then can transiently exceed aortic pressure in the setting of severe aortic regurgitation. This hemodynamic observation suggests that the valve opening is an active process.<\/jats:p>","DOI":"10.1002\/clc.4960090513","type":"journal-article","created":{"date-parts":[[2009,2,7]],"date-time":"2009-02-07T03:09:27Z","timestamp":1233976167000},"page":"225-229","source":"Crossref","is-referenced-by-count":3,"title":["Echocardiographic and hemodynamic features of severe aortic regurgitation with diastolic opening of the aortic valve"],"prefix":"10.1002","volume":"9","author":[{"given":"E. E.","family":"Martinez","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. V.","family":"Herman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R. H.","family":"Kay","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"suffix":"Jr","given":"S. C.","family":"Pontes","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A. C.","family":"Brandao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Pfefferman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. B.","family":"Arroyo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"O. P.","family":"Portugal","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2009,2,5]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(79)90013-9"},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(81)90495-6"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.37.10.1101"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.1870060310"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.26.3.412"},{"key":"e_1_2_1_6_1","first-page":"112","article-title":"Diastolic opening of aortic valve. An echographic observation","volume":"52","author":"Tajik AJ","year":"1977","journal-title":"Mayo Clin Proc"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.55.1.145"}],"container-title":["Clinical Cardiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fclc.4960090513","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/clc.4960090513","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,20]],"date-time":"2023-10-20T17:16:26Z","timestamp":1697822186000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/clc.4960090513"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1986,5]]},"references-count":7,"journal-issue":{"issue":"5","published-print":{"date-parts":[[1986,5]]}},"alternative-id":["10.1002\/clc.4960090513"],"URL":"https:\/\/doi.org\/10.1002\/clc.4960090513","archive":["Portico"],"relation":{},"ISSN":["0160-9289","1932-8737"],"issn-type":[{"value":"0160-9289","type":"print"},{"value":"1932-8737","type":"electronic"}],"subject":[],"published":{"date-parts":[[1986,5]]}}}