Prognostic value of renal function in patients with aortic stenosis treated with transcatheter aortic valve replacement

The objectives of the present study were to analyze the variation of renal function after transcatheter aortic valve replacement (TAVR) focused on acute kidney injury (AKI) and its impact on short- and mid-term mortality.Changes on renal function after TAVR and their impact on clinical outcomes are incompletely understood until now.At two tertiary centers 221 consecutive patients were submitted to TAVR. Kidney injury was defined according to VARC-2 criteria. Patients were classified according to the presence (group 1) or absence (group 2) of AKI. Creatinine values were collected daily until seventh day after procedure, 1 month, 6 months, and then 1 year after TAVR.At baseline, groups were similar, except for EuroSCORE II (8.66% vs. 7.34%, P = 0.02) and glomerular filtration rate (GFR) (39.59 vs. 48.49 mL/min.1.73 mIn this TAVR cohort, baseline GFR was the only independent predictor of AKI, which negatively impacted on 30-day and 1-year mortality. © 2016 Wiley Periodicals, Inc.