Infective endocarditis in surgical versus transcatheter aortic valve implantation. Same incidence and same prognosis?

We have been treating patients with severe aortic stenosis and low surgical risk using transcatheter aortic valve implantation (TAVI) for quite a few years, and the proportion of patients with this profile treated with this option is increasingly higher.1 However, the rapid expansion of this technique is unfolding with relevant unknowns that are still under investigation,2 such as the risk of infective endocarditis (IE)—a rare yet serious complication. In a study recently published in REC: Interventional Cardiology, Barreiro et al.3 investigated the actual incidence and prognosis of IE in this context compared with patients undergoing conventional surgical aortic valve replacement (SAVR) with a biological prosthetic valve. In the study, the direct comparison between the incidence of IE in patients undergoing TAVI and those treated with SAVR shows that the rate is very similar across groups (1.29% in TAVI vs 1.64% in SAVR).3 This incidence—although low—is higher than that reported in studies conducted with low-risk patients, such as the NOTION trial (0.5% in TAVI vs 0.8% in SAVR at 5.6 years) and the PARTNER 3 trial (0.4% in TAVI vs 0.6% in SAVR at 3 years).4,5 On the other hand, the authors report a similar rate of surgical procedures performed in both...