[Comment] Transcatheter aortic valve implantation: lessons from the ACURATE IDE trial

Transcatheter aortic valve implantation (TAVI) has transformed the treatment of aortic stenosis.1 A series of strategy trials comparing TAVI with surgical aortic valve replacement established TAVI as the mainstay treatment for older patients with aortic stenosis and catalysed the development of novel transcatheter heart valves (THVs).2,3 Distinct differences in valve design, release mechanism, and haemodynamic characteristics of various THVs have become the focus of recent investigations, marking the beginning of a new era of head-to-head THV comparisons.