{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T20:51:09Z","timestamp":1770324669933,"version":"3.49.0"},"reference-count":29,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2020,11,21]],"date-time":"2020-11-21T00:00:00Z","timestamp":1605916800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,4,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p\/>\n               <jats:sec>\n                  <jats:title>OBJECTIVES<\/jats:title>\n                  <jats:p>The Florida-sleeve is a valve-sparing technique that causes minimal interference to leaflet kinematics and aortic root dynamism. The aim of this in vitro study was to evaluate the effects of the Florida-sleeve and Yacoub techniques on aortic leaflet kinematics.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>METHODS<\/jats:title>\n                  <jats:p>Two groups of 6 whole porcine hearts were treated with either the Florida-sleeve technique or the Yacoub technique and tested in a pulsatile loop. Valve fluid dynamics, coronary flow analysis and valve echocardiograms were performed both before and after the procedures.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>RESULTS<\/jats:title>\n                  <jats:p>Both procedures showed no difference in rapid valve opening time as compared with their respective baseline values. The Florida-sleeve procedure showed a shorter slow closing time (192\u2009\u00b1\u200919\u2009ms vs baseline 244\u2009\u00b1\u200914\u2009ms, P\u2009=\u20090.016) and increased slow closing velocity (\u22121.5\u2009\u00b1\u20090.4\u2009cm\/s vs baseline \u22120.8\u2009\u00b1\u20090.4\u2009cm\/s, P\u2009=\u20090.038). In the rapid valve closing phase, the Yacoub procedure showed a trend towards slower closing valve velocity (\u221216\u2009\u00b1\u20099\u2009cm\/s vs baseline \u221225\u2009\u00b1\u20099\u2009cm\/s, P\u2009=\u20090.07). The Yacoub procedure showed larger leaflet displacement at the end of the slow valve closing time that was 2.0\u2009\u00b1\u20090.5\u2009cm vs baseline 1.5\u2009\u00b1\u20090.3\u2009cm, P\u2009=\u20090.044. When comparing the Florida-sleeve and Yacoub procedures, the former showed statistically significant shorter slow valve closing time (P\u2009=\u20090.017).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>CONCLUSIONS<\/jats:title>\n                  <jats:p>This study showed that the Florida-sleeve technique alters the slow closing phase of the aortic valve leaflet kinematics when compared with both the normal baseline and Yacoub procedure, while the latter showed a larger leaflet displacement before the rapid closing valve phase.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/ejcts\/ezaa370","type":"journal-article","created":{"date-parts":[[2020,9,10]],"date-time":"2020-09-10T19:10:32Z","timestamp":1599765032000},"page":"674-679","source":"Crossref","is-referenced-by-count":7,"title":["Leaflet kinematics after the Yacoub and Florida-sleeve operations: results of an <i>in vitro<\/i> study"],"prefix":"10.1093","volume":"59","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0702-6145","authenticated-orcid":false,"given":"Giordano","family":"Tasca","sequence":"first","affiliation":[{"name":"Department of Cardiac Surgery, Heart Health Center, King Saud Medical City, Riyadh, Kingdom of Saudi Arabia"},{"name":"Department of Electronic, Information and Bioengineering, Politecnico di Milano, Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1484-8913","authenticated-orcid":false,"given":"Michal","family":"Jaworek","sequence":"additional","affiliation":[{"name":"Department of Electronic, Information and Bioengineering, Politecnico di Milano, Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4842-5000","authenticated-orcid":false,"given":"Federico","family":"Lucherini","sequence":"additional","affiliation":[{"name":"Department of Electronic, Information and Bioengineering, Politecnico di Milano, Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Francesco","family":"Trinca","sequence":"additional","affiliation":[{"name":"Cardiovascular Department, Operative Unit of Cardiac Surgery, Spedali Civili di Brescia, Brescia, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7479-9826","authenticated-orcid":false,"given":"Paola","family":"Redaelli","sequence":"additional","affiliation":[{"name":"Cardiovascular Department, Cardiac Surgery Unit, San Raffaele Hospital, Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9003-0240","authenticated-orcid":false,"given":"Carlo","family":"Antona","sequence":"additional","affiliation":[{"name":"Cardiovascular Surgery Department, ASST Fatebenefratelli \u201cLuigi Sacco\u201d University Hospital, Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Riccardo","family":"Vismara","sequence":"additional","affiliation":[{"name":"Department of Electronic, Information and Bioengineering, Politecnico di Milano, Milan, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2020,11,21]]},"reference":[{"key":"2021050518275828600_ezaa370-B1","first-page":"24","article-title":"Aortic valve sparing operations: outcomes at 20 years","volume":"2","author":"David","year":"2013","journal-title":"Ann Cardiothorac Surg"},{"key":"2021050518275828600_ezaa370-B2","doi-asserted-by":"crossref","first-page":"2153","DOI":"10.1161\/01.CIR.100.21.2153","article-title":"Opening and closing characteristics of the aortic valve after different types of valve-preserving 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