Abstract 17302: A Meta-Analysis of Major Adverse Cardiovascular and Cerebrovascular Events in Patients Undergoing Transcatheter Aortic Valve Implantation Using Edwards SAPIEN valve versus Medtronic CoreValve for Severe Aortic Stenosis

Background: In patients with severe aortic stenosis (AS) who are at high risk for surgery, a transcatheter aortic valve implantation (TAVI) is an emerged alternative procedure using Edwards SAPIEN valve (EV) or Medtronic CoreValve (CV). The purpose of this meta-analysis is to compare early major adverse cardiovascular and cerebrovascular events (MACCE) between EV and CV. Methods: PubMed and the Cochrane Center Register of Controlled Trials were searched through May 2014. Seventeen studies (n=6211) comparing TAVI procedure that used EV (n=2693) and CV (n=3518) were included. End points were post-procedural all-cause mortality, cardiovascular mortality, myocardial infarction, stroke, major bleeding and major vascular events. The odds ratio (OR) with 95% confidence interval (CI) was computed and p<0.05 was considered as a level of significance. Results: The studies were homogeneous for all outcomes except all-cause mortality. There was no significant difference between EV and CV for post-procedural all-cause mortality (OR: 0.82, CI: 0.6-1.13, p=0.23), cardiovascular mortality (OR: 0.7, CI: 0.41-1.2. p=0.2), myocardial infarction (OR: 1.13, CI: 0.51-2.51, p=0.76), stroke (OR: 0.97, CI: 0.66-1.42, p=0.86) (Figure), major bleeding (OR: 1.13, CI: 0.81-1.58, p=0.48) and major vascular complications (OR: 1.22, CI: 0.94-1.58, p=0.14). Conclusion: The results of our meta-analysis of 6211 patients suggest that the types of valve used to perform TAVI procedures do not affect early mortality and MACCE outcomes. Further studies are needed to evaluate long-term outcomes.