Meta-Analysis of Impact of Diabetes Mellitus on Outcomes After Transcatheter Aortic Valve Implantation

To date, the impact of diabetes mellitus (DM) on prognosis after transcatheter aortic valve implantation (TAVI) is still contradictory and thus merits further investigation. The purpose of this meta-analysis was to evaluate the impact of DM on outcomes after TAVI. A systematic search of the PubMed database was performed. Primary end points were 30-day and 1-year all-cause mortality after TAVI. Risk ratios (RRs) and 95% CIs were calculated using the random-effect or fixed-effect model, depending on heterogeneity between studies, and p values <0.05 was considered significant. A total of 16 studies involving 13,253 patients were included in our meta-analysis. There was no significant difference between the groups with DM and without DM regarding 30-day (RR 1.07, 95% CI 0.90 to 1.27, p = 0.45) or 1-year (RR 1.04, 95% CI 0.94 to 1.15, p = 0.42) all-cause mortality. The risks of 30-day complications, including myocardial infarction, stroke, major vascular complications, major bleeding, and acute kidney injury, were similar between patients with and without DM. In conclusion, DM neither affected short- or mid-term all-cause mortality nor short-term complications after TAVI.