University of Oulu

Five-Year Outcomes of Transfemoral Transcatheter Aortic Valve Replacement or Surgical Aortic Valve Replacement in a Real World Population. Marco Barbanti, MD, Corrado Tamburino, MD, Paola D’Errigo, RS, Fausto Biancari, MD, PhD, Marco Ranucci, MD, Stefano RosatoRS, Gennaro Santoro, MD, Danilo Fusco, RS, Fulvia Seccareccia, RS, for the OBSERVANT Research Group

Five-year outcomes of transfemoral transcatheter aortic valve replacement or surgical aortic valve replacement in a real world population final results from the OBSERVANT study

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Author: Barbanti, Marco1; Tamburino, Corrado1; D’Errigo, Paola2;
Organizations: 1Division of Cardiology, Policlinico-Vittorio Emanuele Hospital, University of Catania, Italy
2National Centre for Global Health - Istituto Superiore di Sanità, Rome, Italy
3Department of Surgery, University of Oulu, Oulu, Finland
4Heart Center, Turku University Hospital, and Department of Surgery, University of Turku, Turku, Finland
5Department of Cardiothoracic and Vascular Anesthesia and ICU - IRCCS Policlinico San Donato, San Donato Milanese (Milan), Italy
6Division of Cardiology, Careggi Hospital, Florence, Italy
7Department of Epidemiology of Lazio Regional Health Service, Rome, Italy
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.4 MB)
Persistent link:
Language: English
Published: Wolters Kluwer, 2019
Publish Date: 2019-10-15


Background: The OBSERVANT study (Observational Study of Effectiveness of SAVR–TAVI Procedures for Severe Aortic Stenosis Treatment) showed that mortality at 1 year is similar after transfemoral transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR) for real-world propensity-matched patients with aortic stenosis at low and intermediate risk. We report the 5-year outcomes of the Italian OBSERVANT study.

Methods and Results: The unadjusted enrolled population (N=7618) between December 2010 and June 2012 included 5707 patients on SAVR and 1911 patients on TAVR. The propensity score method was applied to select 2 groups with similar baseline characteristics. All outcomes were adjudicated through a linkage with administrative databases. The primary end points of this analysis were death from any cause and major adverse cardiac and cerebrovascular events at 5 years. The matched population had a total of 1300 patients (650 per group). The propensity score method generated a low and intermediate-risk population (mean logistic EuroSCORE 2: 5.1±6.2% versus 4.9±5.1%, SAVR versus transfemoral TAVR; P=0.485). At 5 years, the rate of 5 death from any cause was 35.8% in the surgical group and 48.3% in the transcatheter group (hazard ratio, 1.38; 95% CI, 1.12–1.69; P=0.002). Similarly, TAVR was associated with an increased risk of major adverse cardiac and cerebrovascular events as compared with SAVR (42.5% versus 54.0%; hazard ratio, 1.35; 95% CI, 1.11–1.63; P=0.003). The cumulative incidence of cerebrovascular events, myocardial infarction, and coronary revascularization were similar in the study groups at 5 years.

Conclusions: The present results suggest that at 5 years, in a real-world population with severe aortic stenosis and at low and intermediate risk, suggest that SAVR is associated in with lower mortality and major adverse cardiac and cerebrovascular events rates than transfemoral TAVR performed using first-generation devices. These data need to be confirmed in randomized trials using new-generation TAVR devices.

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Series: Circulation. Cardiovascular interventions
ISSN: 1941-7640
ISSN-E: 1941-7632
ISSN-L: 1941-7640
Volume: 12
Issue: 7
Article number: e007825
DOI: 10.1161/CIRCINTERVENTIONS.119.007825
Type of Publication: A1 Journal article – refereed
Field of Science: 3126 Surgery, anesthesiology, intensive care, radiology
Funding: The OBSERVANT Study was funded from Italian Ministry of Health (Fasc. 1M30 and Covenzione n.6/PE-2016-02364619) and Istituto Superiore di Sanità.
Copyright information: © 2019 American Heart Association, Inc. The Definitive Version of Record can be found online at: