Newer Specific Risk Scores for Outcome After Transcatheter Aortic Valve Replacement

following this procedure.To date, however, a reliable risk model estimating TAVR procedural success and longer-term prognosis has been not available.In order to design a TAVR-specific risk score, the Society of Thoracic Surgeons/American College of Cardiology (STS/ACC) Transcatheter Valve Therapy (TVT) Registry TAVR inhospital mortality risk score (STS/ACC TAVR risk score) was established.6In this issue of the Journal, Saji et al 7 report on the prognostic impact of the TAVR risk score on mid-term T ranscatheter aortic valve replacement (TAVR) has emerged as an alternative to surgical aortic valve replacement (SAVR) for symptomatic severe aortic stenosis (AS) patients at increased surgical risk.TAVR is being used increasingly worldwide and the indication has been gradually extended from high-to intermediate-surgical risk patients.1,2 Recently, it was reported that TAVR with either balloon-expandable valves or self-expanding valves was superior or non-inferior to surgical treatments even in low-surgical risk patients.3,4 The indication for TAVR will shift towards lower-surgical risk patients in the next few years.5 Accordingly, more attention should be given to determining the longer-term prognosis and durability