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Am J Cardiol. 2012 Nov 15;110(10):1500-6. doi: 10.1016/j.amjcard.2012.07.010. Epub 2012 Aug 3.

Long-term outcome of patients with moderate and severe prosthetic aortic valve regurgitation after transcatheter aortic valve implantation.

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BG-Kliniken Bergmannsheil, Cardiology and Angiology, Ruhr-University Bochum, Germany.


Recently, moderate and severe postprocedure aortic regurgitations (ARs) have been identified as independent risk factors for short- and midterm mortality after transcatheter aortic valve implantation (TAVI). However, very few data exist on the long-term outcome of postprocedure AR. From 2008 to 2011, 198 consecutive patients with severe aortic stenosis successfully underwent TAVI with the CoreValve prosthesis (Medtronic CV, Minneapolis, Minnesota). After the procedure, patients were subdivided into groups depending on the presence of moderate/severe AR. The primary study end point was death from any cause after TAVI. The secondary end point was defined as cardiovascular death. In study patients (80 ± 6 years old, logistic European System for Cardiac Operative Risk Evaluation 22 ± 16%, left ventricular ejection fraction 53 ± 13%), moderate/severe AR occurred in 28 patients (14%). Despite similar baseline characteristics, patients with moderate/severe AR had higher 30-day and 1-year mortality rates than patients with none/mild AR (21% vs 6%, p = 0.019; 57% vs 16%, p <0.001, respectively). During a mean follow-up of 535 ± 333 days, the primary end point was reached in 54 and the secondary end point in 33 patients. Moderate/severe AR was the strongest independent risk factor of all-cause-mortality (hazard ratio 4.89, 95% confidence interval 2.78 to 8.56, p <0.001) and the strongest independent risk factor of cardiovascular mortality (hazard ratio 7.90, 95% confidence interval 3.95 to 15.81, p <0.001). In conclusion, moderate and severe postprocedure ARs are not uncommon complications after TAVI. Although long-term outcome of patients with none/mild AR is favorable, outcome of patients with moderate/severe AR is dismal.

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