Masaaki Nakase, Daijiro Tomii, Annette Maznyczka, Dik Heg, Taishi Okuno, Daryoush Samim, Stefan Stortecky, Jonas Lanz, David Reineke, Stephan Windecker, Thomas Pilgrim
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引用次数: 0
Abstract
Background: The importance of transcatheter heart valve (THV) design on clinical outcome in patients with aortic stenosis (AS) and left ventricular (LV) systolic dysfunction remains unknown.
Objectives: We aimed to compare 5-year outcomes of patients with severe AS and reduced LV ejection fraction (LVEF), undergoing transcatheter aortic valve implantation (TAVI) with balloon-expandable vs. self-expanding THVs.
Methods: In a retrospective analysis from the Bern TAVI registry, patients with LVEF <50% who underwent TAVI with either balloon-expandable or self-expanding THVs were included. A 1:1 propensity-score matching was performed to account for baseline differences between groups.
Results: A total of 759 patients were included between August 2007 and December 2022, and propensity-score matching resulted in 134 pairs. Technical success was achieved in over 85% of patients, and was similar in both groups. Self-expanding THVs were associated with a lower mean transvalvular gradient (7.1 ± 3.7 mmHg vs. 9.9 ± 4.3 mmHg; P <0.001) and a higher incidence of ≥mild-to-moderate paravalvular regurgitation (36.3% vs. 11.3%; P <0.001) compared to balloon-expandable THVs. At 5 years, patients treated with a self-expanding THV had higher all-cause mortality than those with a balloon-expandable THV (67.8% vs. 55.8%, HRadjusted: 1.44; 95% CI: 1.02-2.03; P = 0.037). There were no significant differences in other clinical outcomes up to 5 years between groups.
Conclusions: In the setting of LV systolic dysfunction, patients treated with a self-expanding THV had higher risk of 5-year mortality compared to patients treated with a balloon-expandable THV.
期刊介绍：
The American Heart Journal will consider for publication suitable articles on topics pertaining to the broad discipline of cardiovascular disease. Our goal is to provide the reader primary investigation, scholarly review, and opinion concerning the practice of cardiovascular medicine. We especially encourage submission of 3 types of reports that are not frequently seen in cardiovascular journals: negative clinical studies, reports on study designs, and studies involving the organization of medical care. The Journal does not accept individual case reports or original articles involving bench laboratory or animal research.
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