Stähli, B E; Bünzli, R; Grünenfelder, J; Bühler, I; Felix, C; Bettex, D; Biaggi, P; Tanner, F C; Nguyen-Kim, D L; Plass, A; Ge, H; Falk, V; Lüscher, T F; Corti, R; Maier, W; Altwegg, L A (2011). Transcatheter aortic valve implantation (TAVI) outcome according to standardized endpoint definitions by the valve academic research consortium (VARC). Journal of Invasive Cardiology, 23(8):307-312.
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Transcatheter aortic valve implantation (TAVI) has become an accepted treatment option for severe aortic stenosis (AS) in high-risk individuals. Yet, current results are difficult to compare given the lack of standardized definitions.
METHODS AND RESULTS:
TAVI was performed in 130 high-risk individuals. The Edwards SAPIEN (n = 50) and the Medtronic CoreValve (n = 80) prostheses were implanted by transfemoral (75%) or transapical (25%) access. Outcomes at 30 days and 1 year are reported according to the newly established Valve Academic Research Consortium (VARC) criteria. Median follow-up was 235 days (range, 44-490 days). Thirty-day device success was high (91.5%). Combined safety endpoint at 30 days was 20.8%, with an all-cause mortality of 11.5%. Major vascular complications (11.5%), life-threatening or disabling bleeding (8.5%), and acute kidney injury (6.2%) were further major adverse events. At 1-year follow-up, valve performance was accurate in 94.7% of patients. However, prosthetic-valve associated complications, such as new left bundle branch block (20.0%) or permanent pacemaker implantation (34.7%), were common; cumulative prosthetic-valve associated complications were significantly more frequent in patients treated with a Medtronic CoreValve prosthesis (p = 0.0012). Overall 1-year survival was 80%, with the VARC combined efficacy endpoint (composite of survival, freedom from therapy failure, and accurate valve performance) met in 70.2%. In particular, at 1 year, 68.5% of the patients were living independently at home.
The newly established VARC standardized definitions are useful for TAVI outcome reporting.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > University Hospital Zurich > Clinic for Cardiovascular Surgery
04 Faculty of Medicine > University Hospital Zurich > Clinic for Diagnostic and Interventional Radiology
04 Faculty of Medicine > University Hospital Zurich > Clinic for Cardiology
04 Faculty of Medicine > University Hospital Zurich > Institute of Anesthesiology
|DDC:||610 Medicine & health|
|Deposited On:||08 Dec 2011 09:38|
|Last Modified:||28 Nov 2013 01:41|
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