{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T12:32:20Z","timestamp":1784291540712,"version":"3.55.0"},"reference-count":19,"publisher":"Georg Thieme Verlag KG","issue":"03","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Thorac Cardiovasc Surg"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>\n          Background\u2003Bioprosthetic stentless aortic valves may degenerate over time and will require replacement. This study aimed to evaluate early- and mid-term outcomes after isolated surgical redo aortic valve replacement (redo-SAVR) and transcatheter valve-in-valve implantation (TAVI-VIV) for degenerated stentless Freestyle bioprostheses.<\/jats:p><jats:p>\n          Methods\u2003We reviewed records of 56 patients at a single center. Overall, 37 patients (66.1%) received TAVI-VIV and 19 (33.9%) received redo-SAVR.<\/jats:p><jats:p>\n          Results\u2003Thirty-day survival was similar in both groups (100%). One-year survival was comparable between groups (97.3% in TAVI-VIV and 100% in redo-SAVR, p\u2009=\u20091.0). The difference in mid-term survival after adjusting for age and EuroScore II was not significant (p\u2009=\u20090.41). The incidence of pacemaker implantation after TAVI-VIV was higher than after redo-SAVR (19.4% vs. 0%, p\u2009=\u20090.08).<\/jats:p><jats:p>\n          Conclusion\u2003The 30-day and 1-year survival rates after both procedures were outstanding, irrespective of baseline characteristics. Isolated redo-SAVR should be favored in young patients, as the pacemaker implantation rate is lower. TAVI-VIV for degenerated Freestyle prosthesis can be a method of choice in elderly patients and those with high operative risk.<\/jats:p>","DOI":"10.1055\/s-0043-1763286","type":"journal-article","created":{"date-parts":[[2023,3,2]],"date-time":"2023-03-02T00:01:40Z","timestamp":1677715300000},"page":"188-196","source":"Crossref","is-referenced-by-count":2,"title":["Interventional versus Surgical Treatment of Degenerated Freestyle Prosthesis"],"prefix":"10.1055","volume":"72","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3663-8861","authenticated-orcid":false,"given":"Denis","family":"Fedorov","sequence":"additional","affiliation":[{"name":"Department of Cardiology, MediClin Herzzentrum Lahr\/Baden, Lahr, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert","family":"Bauernschmitt","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Surgery, MediClin Herzzentrum Lahr\/Baden, Lahr, Germany"},{"name":"Department of Cardiovascular 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