Infective Endocarditis After Transcatheter Versus Surgical Aortic Valve Replacement: A Meta-Analysis

We determined the incidence, clinical characteristics, and risk factors of post-transcatheter aortic valve replacement (TAVR)-associated infective endocarditis (IE). We compared the incidence of IE after TAVR versus after surgical aortic valve replacement (SAVR). The incidence rate of IE 1-year post-TAVR was 0.9% (95% confidence interval [CI]: 0.8-1.0). Transcatheter aortic valve replacement was associated with significantly reduced IE incidence (incidence rate ratio: 0.69, 95% CI: 0.52-0.92,P= .011) compared with SAVR. In patients with TAVR IE, the pooled in-hospital mortality was 37.8% (95% CI: 32.4-43.3,I-2= 54.9%). Pooled adjusted hazard ratio (HR) revealed that peri-procedural peripheral artery disease (HR: 4.02, 95% CI: 2.28-7.10,P< .0001), moderate or severe residual aortic regurgitation (HR: 2.34, 95% CI: 1.53-3.59,P< .0001), orotracheal intubation (HR: 2.13, 95% CI: 1.19-3.82,P= .011), and male gender (HR: 1.70, 95% CI: 1.47-1.97,P< .0001) were risk factors for post-TAVR IE. Post-TAVR IE is a life-threatening complication often resulting in in-hospital mortality. The current evidence-based meta-analysis to identify risk factors may lead to the development of effective preventive and therapeutic strategies for post-TAVR IE to ultimately improve patient outcomes.