{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T19:17:01Z","timestamp":1777576621079,"version":"3.51.4"},"reference-count":15,"publisher":"SAGE Publications","issue":"8-9","license":[{"start":{"date-parts":[[2025,10,30]],"date-time":"2025-10-30T00:00:00Z","timestamp":1761782400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Asian Cardiovasc Thorac Ann"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Valve-in-valve transcatheter aortic valve implantation (TAVI) has been confirmed as effective. Additionally, aortic annular enlargement has been advocated to avoid small valves at initial surgery, because they can cause patient-prosthesis mismatch, particularly after TAVI in surgical aortic valve replacement (SAVR). However, results remain unclear for TAVI with a small initial aortic valve in small body size patients. The purpose is to clarify the TAVI valve function after a small surgical valve in a small body population.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We retrospectively screened 52 cases of TAVI in SAVR performed from 2018 to 2024. Post-procedural TAVI valve function and post-procedural New York Heart Association (NYHA) functional class were examined.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Of 52 TAVI in SAVR cases, 16 cases had a 19\u2005mm initial surgical aortic valve, and 19 cases had 21\u2005mm. The mean age of these 35 cases was 83.1 years old and 20% were male. Mean body surface area was 1.39\u2005cm\n                      <jats:sup>2<\/jats:sup>\n                      . After TAVI in SAVR in 35 cases, the mean pressure gradient was 18.5\u2005mmHg, and the effective orifice area (EOA) was 1.10\u2005cm\n                      <jats:sup>2<\/jats:sup>\n                      . Even after 19-mm SAVR, the mean pressure gradient was 13.4\u2005mmHg, and EOA was 1.13\u2005cm\n                      <jats:sup>2<\/jats:sup>\n                      , excluding 3 cases of off-label use and 3 cases of balloon-expandable valves. At the time of last follow-up, 86.2% of survivors remained in NYHA I or II.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Self-expanding TAVI in a certain type of SAVR provided sufficient valve function in a population with small body size, even after small-sized initial surgical prostheses. Surgeons need to ensure that the proper type and size of surgical prosthesis are implanted.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/02184923251331338","type":"journal-article","created":{"date-parts":[[2025,10,30]],"date-time":"2025-10-30T19:03:59Z","timestamp":1761851039000},"page":"269-274","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Transcatheter aortic valve implantation in small surgical aortic prosthesis for small body size patients"],"prefix":"10.1177","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8978-9340","authenticated-orcid":false,"given":"Hideki","family":"Kitamura","sequence":"first","affiliation":[{"name":"Nagoya Heart Center"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuichiro","family":"Fukumoto","sequence":"additional","affiliation":[{"name":"Nagoya Heart Center"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yusuke","family":"Imamura","sequence":"additional","affiliation":[{"name":"Nagoya Heart Center"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ai","family":"Kagase","sequence":"additional","affiliation":[{"name":"Nagoya Heart Center"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masanori","family":"Yamamoto","sequence":"additional","affiliation":[{"name":"Nagoya Heart Center"},{"name":"Toyohashi Heart Center"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,10,30]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.0000047200.36165.B8"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2003.11.026"},{"key":"e_1_3_3_4_2","first-page":"35","article-title":"2020 ACC\/AHA guideline for the management of patients with valvular heart disease: executive summary: a report of the American College of Cardiology\/American Heart Association joint committee on clinical practice guidelines","volume":"145","author":"Otto CM","year":"2021","unstructured":"Otto CM, Nishimura RA, Bonow RO, et al. 2020 ACC\/AHA guideline for the management of patients with valvular heart disease: executive summary: a report of the American College of Cardiology\/American Heart Association joint committee on clinical practice guidelines. 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