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We report two rare patients who underwent composite graft replacement of the aortic root with a mechanical valve, the so-called Bentall-type operation, after Fontan completion. The pathological examination on the resected aortic wall revealed mucoid degeneration in tunica media and elastic fiber fragmentation. Our report emphasizes the need for close observation of these patients over a long-term period.<\/jats:p>","DOI":"10.1177\/2150135118755984","type":"journal-article","created":{"date-parts":[[2018,4,3]],"date-time":"2018-04-03T21:11:47Z","timestamp":1522789907000},"page":"505-507","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Two Cases of Aortic Root Replacement After Fontan Completion"],"prefix":"10.1177","volume":"10","author":[{"given":"Kenji","family":"Suzuki","sequence":"first","affiliation":[{"name":"Department of Cardiovascular Surgery, The Heart Institute, Tokyo Women\u2019s Medical University, Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takahiko","family":"Sakamoto","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Surgery, The Heart Institute, Tokyo Women\u2019s Medical University, Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Narutoshi","family":"Hibino","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Surgery, The Heart Institute, Tokyo Women\u2019s Medical University, Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shigeyuki","family":"Aomi","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Surgery, The Heart Institute, Tokyo Women\u2019s Medical University, Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshiharu","family":"Shin\u2019oka","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Surgery, The Heart Institute, Tokyo Women\u2019s Medical University, Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kenji","family":"Yamazaki","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Surgery, The Heart Institute, Tokyo Women\u2019s Medical University, Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2018,4,3]]},"reference":[{"key":"bibr1-2150135118755984","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejcts.2009.12.019"},{"key":"bibr2-2150135118755984","doi-asserted-by":"publisher","DOI":"10.1016\/j.athoracsur.2006.06.077"},{"key":"bibr3-2150135118755984","doi-asserted-by":"publisher","DOI":"10.1046\/j.1525-1594.2002.06957.x"},{"key":"bibr4-2150135118755984","doi-asserted-by":"publisher","DOI":"10.1016\/S0003-4975(02)03683-4"},{"key":"bibr5-2150135118755984","doi-asserted-by":"publisher","DOI":"10.1016\/S1010-7940(02)00833-3"},{"key":"bibr6-2150135118755984","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.99.16.2138"},{"key":"bibr7-2150135118755984","doi-asserted-by":"publisher","DOI":"10.1093\/icvts\/ivu163"},{"key":"bibr8-2150135118755984","doi-asserted-by":"publisher","DOI":"10.4070\/kcj.2013.43.4.215"}],"container-title":["World Journal for Pediatric and Congenital Heart Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/2150135118755984","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/2150135118755984","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/2150135118755984","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T23:21:21Z","timestamp":1777591281000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/2150135118755984"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,4,3]]},"references-count":8,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2019,7]]}},"alternative-id":["10.1177\/2150135118755984"],"URL":"https:\/\/doi.org\/10.1177\/2150135118755984","relation":{},"ISSN":["2150-1351","2150-136X"],"issn-type":[{"value":"2150-1351","type":"print"},{"value":"2150-136X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,4,3]]}}}