Five-year outcomes of mild paravalvular regurgitation after transcatheter aortic valve implantation
Taishi Okuno, Daijiro Tomii, Dik Heg, Jonas Lanz, Fabien Praz, Stefan Stortecky, David Reineke, Stephan Windecker, Thomas Pilgrim
Abstract
BACKGROUND: Mild paravalvular regurgitation (PVR) remains a frequent and underappreciated adverse event after transcatheter aortic valve implantation (TAVI) despite remarkable progress in device technology and implantation technique. AIMS: This study sought to investigate the impact of mild PVR after TAVI on five-year clinical outcomes. METHODS: In a prospective TAVI registry, PVR prior to discharge was retrospectively assessed in an echocardiographic core laboratory. Patients with ≥moderate PVR were excluded. Mild PVR was categorised into mild and mild-to-moderate PVR using a recently proposed unifying 5-class grading scheme. RESULTS: 1.56, 95% CI: 1.20-2.02). The effect of mild PVR on five-year mortality was consistent across major subgroups. CONCLUSIONS: Mild PVR was associated with an increased risk of mortality at five years after TAVI. The detrimental effect was primarily driven by mild-to-moderate PVR using the 5-class grading scheme. CLINICAL TRIAL REGISTRATION: https://www. CLINICALTRIALS: gov. NCT01368250.