Jian Ye1, Anson Cheung2, Michael Yamashita2, David Wood3, Defen Peng4, Min Gao4, Christopher R Thompson3, Brad Munt3, Robert R Moss3, Philipp Blanke5, Jonathon Leipsic5, Danny Dvir3, John G Webb3. 1. Division of Cardiac Surgery, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada. Electronic address: jye@providencehealth.bc.ca. 2. Division of Cardiac Surgery, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada. 3. Division of Cardiology, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada. 4. St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada. 5. Department of Radiology, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada.
Abstract
OBJECTIVES: We report our 8-year experience in transcatheter aortic and mitral valve-in-valve (VinV) implantation. BACKGROUND: Feasibility and good early outcomes associated with transcatheter aortic and mitral VinV implantation into failed surgical bioprostheses have been confirmed, but the mid-term and long-term outcomes of transcatheter aortic and mitral VinV is unknown. METHODS: A total of 73 patients with aortic (n = 42) and mitral (n = 31) bioprosthetic valve dysfunction underwent transcatheter VinV implantation between April 2007 and December 2013. Edwards balloon-expandable transcatheter valves (Edwards Lifesciences Inc., Irvine, California) were used. Median follow-up was 2.52 years with a maximum of 8 years. RESULTS: Seventy-two patients (mean age 79.7 ± 9.4 years, 32 women) underwent successful VinV implantation (success rate 98.6%). At 30 days, all-cause mortality was 1.4%, disabling stroke 1.4%, life-threatening bleeding 4.1%, acute kidney injury requiring hemodialysis 2.7%, and coronary artery obstruction requiring intervention 1.4%. No patient had greater than mild paravalvular leak. Estimated survival rates were 88.9%, 79.5%, 69.8%, 61.9%, and 40.5% at 1, 2, 3, 4, and 5 years, respectively. The small surgical valve size (19 and 21 mm) was an independent risk factor for reduced survival in aortic VinV patients. At 2-year follow-up, 82.8% of aortic and 100% of mitral VinV patients were in New York Heart Association functional class I or II. CONCLUSIONS: Transcatheter VinV for failed surgical bioprostheses can be performed safely with a high success rate and minimal early mortality and morbidity. Transcatheter VinV provides encouraging mid-term clinical outcomes in this high-risk elderly cohort of patients. Transcatheter VinV is an acceptable alternative therapy for failed aortic or mitral bioprostheses in selected high-risk patients.
OBJECTIVES: We report our 8-year experience in transcatheter aortic and mitral valve-in-valve (VinV) implantation. BACKGROUND: Feasibility and good early outcomes associated with transcatheter aortic and mitral VinV implantation into failed surgical bioprostheses have been confirmed, but the mid-term and long-term outcomes of transcatheter aortic and mitral VinV is unknown. METHODS: A total of 73 patients with aortic (n = 42) and mitral (n = 31) bioprosthetic valve dysfunction underwent transcatheter VinV implantation between April 2007 and December 2013. Edwards balloon-expandable transcatheter valves (Edwards Lifesciences Inc., Irvine, California) were used. Median follow-up was 2.52 years with a maximum of 8 years. RESULTS: Seventy-two patients (mean age 79.7 ± 9.4 years, 32 women) underwent successful VinV implantation (success rate 98.6%). At 30 days, all-cause mortality was 1.4%, disabling stroke 1.4%, life-threatening bleeding 4.1%, acute kidney injury requiring hemodialysis 2.7%, and coronary artery obstruction requiring intervention 1.4%. No patient had greater than mild paravalvular leak. Estimated survival rates were 88.9%, 79.5%, 69.8%, 61.9%, and 40.5% at 1, 2, 3, 4, and 5 years, respectively. The small surgical valve size (19 and 21 mm) was an independent risk factor for reduced survival in aortic VinV patients. At 2-year follow-up, 82.8% of aortic and 100% of mitral VinV patients were in New York Heart Association functional class I or II. CONCLUSIONS: Transcatheter VinV for failed surgical bioprostheses can be performed safely with a high success rate and minimal early mortality and morbidity. Transcatheter VinV provides encouraging mid-term clinical outcomes in this high-risk elderly cohort of patients. Transcatheter VinV is an acceptable alternative therapy for failed aortic or mitral bioprostheses in selected high-risk patients.
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