Valvular and Nonvalvular Atrial Fibrillation in Patients Undergoing Transcatheter Aortic Valve Replacement.

Okuno, Taishi; Hagemeyer, Daniel; Brugger, Nicolas; Ryffel, Christoph; Heg, Dik; Lanz, Jonas; Praz, Fabien; Stortecky, Stefan; Räber, Lorenz; Roten, Laurent; Reichlin, Tobias; Windecker, Stephan; Pilgrim, Thomas (2020). Valvular and Nonvalvular Atrial Fibrillation in Patients Undergoing Transcatheter Aortic Valve Replacement. JACC. Cardiovascular Interventions, 13(18), pp. 2124-2133. Elsevier 10.1016/j.jcin.2020.05.049

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OBJECTIVES

The aim of this study was to investigate the impact of valvular and nonvalvular atrial fibrillation (AF) in patients undergoing transcatheter aortic valve replacement (TAVR).

BACKGROUND

AF has been associated with adverse clinical outcomes after TAVR. However, the differential impact of valvular as opposed to nonvalvular AF has not been investigated.

METHODS

In a retrospective analysis of a prospective registry, valvular AF was defined as AF in the setting of concomitant mitral stenosis or the presence of a mitral valve prosthesis. The presence of mitral stenosis was determined by pre-procedural echocardiography. The primary endpoint was a composite of cardiovascular death or disabling stroke at 1 year after TAVR.

RESULTS

Among 1,472 patients undergoing TAVR between August 2007 and June 2018, AF was recorded in 465 patients (31.6%) and categorized as nonvalvular in 376 (25.5%) and valvular in 89 (6.0%). AF scores including HAS-BLED, CHADS2, and CHA2DS2-VASc were comparable between patients with nonvalvular and valvular AF. The primary endpoint occurred in 9.3% of patients with no AF, in 14.5% of patients with nonvalvular AF (hazard ratio: 1.57; 95% confidence interval: 1.12 to 2.20; p = 0.009), and in 24.2% of patients with valvular AF (hazard ratio: 2.75; 95% confidence interval: 1.71 to 4.41; p < 0.001). Valvular AF conferred an increased risk for cardiovascular death or disabling stroke compared with nonvalvular AF (hazard ratio: 1.77; 95% confidence interval: 1.07 to 2.94; p = 0.027).

CONCLUSIONS

The presence of valvular AF in patients undergoing TAVR increased the risk for cardiovascular death or disabling stroke compared with both no AF and nonvalvular AF. (SWISS TAVI Registry; NCT01368250).

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > CTU Bern
04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology

UniBE Contributor:

Okuno, Taishi; Hagemeyer, Daniel Philipp Alfons; Brugger, Nicolas Jacques; Ryffel, Christoph Philippe; Heg, Dierik Hans; Lanz, Jonas; Praz, Fabien; Stortecky, Stefan; Räber, Lorenz; Roten, Laurent; Reichlin, Tobias Roman; Windecker, Stephan and Pilgrim, Thomas

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1876-7605

Publisher:

Elsevier

Language:

English

Submitter:

Andrea Flükiger-Flückiger

Date Deposited:

15 Oct 2020 21:06

Last Modified:

15 Oct 2020 21:06

Publisher DOI:

10.1016/j.jcin.2020.05.049

PubMed ID:

32972574

Uncontrolled Keywords:

atrial fibrillation mitral stenosis nonvalvular atrial fibrillation transcatheter aortic valve replacement valvular atrial fibrillation

BORIS DOI:

10.7892/boris.146817

URI:

https://boris.unibe.ch/id/eprint/146817

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