Long-term results of transcatheter aortic valve replacement in degenerated surgical aortic valves—a propensity score matched analysis
摘要
The aim of this study was to analyse long-term valve function and all-cause mortality of patients undergoing transcatheter aortic valve replacement (TAVR) due to degenerated surgical aortic valve (SAV) bioprostheses.
MethodsIn this single-center study, all consecutive patients undergoing TAVR between December 2012 and December 2020 were included. Long-term echocardiographic results, functional status and 5-year all-cause mortality were analysed in patients with TAV-in-SAV and native valve TAVR in a propensity score matched analysis.
ResultsOut of 3423 patients who were eligible for the study, 136 experienced bioprosthetic valve dysfunction, whereas 3287 patients underwent native valve TAVR. After 2:1 propensity score matching, baseline characteristics without relation to prior SAVR were comparable between both groups. Regarding 5-year all-cause mortality, no difference was observed between patients with prior SAVR and native valve TAVR, in either unadjusted analysis, or after propensity score matching (corresponding hazard ratio: 0.95, 95% CI: 0.70–1.30, p = 0.75). In addition, while pressure gradients were higher in patients with TAV-in-SAV in long-term echocardiographic follow-up, moderate or severe hemodynamic valve deterioration did not occur more often in this group.
ConclusionsIn this propensity score matched analysis, long-term all-cause mortality and echocardiographic valve function of patients with TAVR in prior bioprosthesis were comparable to patients with native valve TAVR.
Graphical AbstractCentral Illustration. Long-Term Results of Transcatheter Aortic Valve Replacement in degenerated Surgical Aortic Valves. Out of 3423 patients who were eligible for the study, 136 experienced bioprosthetic valve dysfunction, whereas 3287 patients underwent native valve TAVR. We performed 2:1 propensity score matching to overcome differences in baseline characteristics. While pressure gradients were higher in patients with TAV-in-SAV in long-term echocardiographic follow-up, moderate or severe hemodynamic valve deterioration did not occur more often in this group (left side). Regarding 5-year all-cause mortality, no difference was observed between patients with prior SAVR and native valve TAVR neither in unadjusted analysis, nor after propensity score matching (corresponding hazard ratio: 0.95, 95% CI: 0.70–1.30, p = 0.75) (right side). SAV surgical aortic valve, TAVR transcatheter aortic valve replacement