Alison Duncan1, Peter Ludman2, Winston Banya1, David Cunningham3, Damian Marlee3, Simon Davies1, Michael Mullen4, Jan Kovac5, Thomas Spyt5, Neil Moat6. 1. Biomedical Research Unit, The Royal Brompton Hospital, London, United Kingdom. 2. Queen Elizabeth Hospital, Birmingham, United Kingdom. 3. National Institute for Cardiovascular Outcomes Research, University College London, London, United Kingdom. 4. University College London, Institute of Cardiovascular Science, London, United Kingdom. 5. University Hospital Leicester, Leicester, United Kingdom. 6. Biomedical Research Unit, The Royal Brompton Hospital, London, United Kingdom. Electronic address: n.moat@rbht.nhs.uk.
Abstract
OBJECTIVES: The U.K. Transcatheter Aortic Valve Implantation Registry reported 30-day and 1-year mortality rates of 7.1% and 21.4%, respectively, for patients who underwent transcatheter aortic valve replacement (TAVR) in the United Kingdom between 2007 and 2009. The study aim was to report long-term outcomes in this same cohort of patients. BACKGROUND: There are few data on outcomes beyond 3 years after TAVR in any notable number of patients. METHODS: Data from all TAVR procedures performed in the United Kingdom between January 2007 and December 2009 were prospectively collected. All-cause mortality status was reported in March 2014. Mortality tracking was achieved in 97.7% patients. RESULTS: The minimal time from replacement to census was 4.1 years, and the maximal time was 7.0 years. The 3- and 5-year survival rates were 61.2% and 45.5%, respectively. Independent predictors of 3-year mortality were renal dysfunction (hazard ratio [HR]: 1.65), atrial fibrillation (HR: 1.36), logistic European System for Cardiac Operative Risk Evaluation (EuroSCORE) ≥18.5 (HR: 1.33), respiratory dysfunction (HR: 1.28), and ventricular dysfunction (left ventricular ejection fraction <30%) (HR: 1.53). Coronary artery disease (HR: 1.28) and age (HR: 1.03) were additional independent predictors of mortality at 5 years. Stroke within 30 days of TAVR was the only independent procedural predictor of mortality at 3 and 5 years (HR: 2.17 at 3 years). Device type, access route, and paravalvular leak did not independently predict long-term outcome. CONCLUSIONS: In the large U.K. Transcatheter Aortic Valve Implantation Registry, long-term outcomes after TAVR are favorable with 3- and 5-year survival rates of 61.2% and 45.5%, respectively. Long-term survival after TAVR is largely determined by intrinsic patient factors. Other than stroke, procedural variables, including paravalvular aortic leak, did not appear to be independent predictors of long-term survival.
OBJECTIVES: The U.K. Transcatheter Aortic Valve Implantation Registry reported 30-day and 1-year mortality rates of 7.1% and 21.4%, respectively, for patients who underwent transcatheter aortic valve replacement (TAVR) in the United Kingdom between 2007 and 2009. The study aim was to report long-term outcomes in this same cohort of patients. BACKGROUND: There are few data on outcomes beyond 3 years after TAVR in any notable number of patients. METHODS: Data from all TAVR procedures performed in the United Kingdom between January 2007 and December 2009 were prospectively collected. All-cause mortality status was reported in March 2014. Mortality tracking was achieved in 97.7% patients. RESULTS: The minimal time from replacement to census was 4.1 years, and the maximal time was 7.0 years. The 3- and 5-year survival rates were 61.2% and 45.5%, respectively. Independent predictors of 3-year mortality were renal dysfunction (hazard ratio [HR]: 1.65), atrial fibrillation (HR: 1.36), logistic European System for Cardiac Operative Risk Evaluation (EuroSCORE) ≥18.5 (HR: 1.33), respiratory dysfunction (HR: 1.28), and ventricular dysfunction (left ventricular ejection fraction <30%) (HR: 1.53). Coronary artery disease (HR: 1.28) and age (HR: 1.03) were additional independent predictors of mortality at 5 years. Stroke within 30 days of TAVR was the only independent procedural predictor of mortality at 3 and 5 years (HR: 2.17 at 3 years). Device type, access route, and paravalvular leak did not independently predict long-term outcome. CONCLUSIONS: In the large U.K. Transcatheter Aortic Valve Implantation Registry, long-term outcomes after TAVR are favorable with 3- and 5-year survival rates of 61.2% and 45.5%, respectively. Long-term survival after TAVR is largely determined by intrinsic patient factors. Other than stroke, procedural variables, including paravalvular aortic leak, did not appear to be independent predictors of long-term survival.
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