JOURNAL ARTICLE

Usefulness of updated valve academic research consortium-2 criteria for acute kidney injury following transcatheter aortic valve implantation

Maayan Konigstein, Eyal Ben-Assa, Yigal Abramowitz, Arie Steinvil, Eran Leshem Rubinow, Ofer Havakuk, Yaron Arbel, Amir Halkin, Gad Keren, Shmuel Banai, Ariel Finkelstein
American Journal of Cardiology 2013 December 1, 112 (11): 1807-11
24012024
Acute kidney injury (AKI) after transcatheter aortic valve implantation (TAVI) is frequent and associated with adverse outcomes. We aimed to identify the incidence and risk factors for AKI after TAVI using the updated Valve Academic Research Consortium-2 classification criteria. We performed a retrospective analysis of 300 consecutive patients undergoing TAVI using either Edwards SAPIEN XT or CoreValve bioprostheses at our medical center. Change in serum creatinine from base line to 48 to 72 hours after TAVI was used to define AKI stages 1 to 3. The final study cohort included 251 patients. Overall incidence of AKI was 16.7% (42 of 251); of which, stage 1 AKI was 15.1% (38 of 251), stage 2 AKI was 1.6% (4 of 251), and none had stage 3 AKI or required hemodialysis. All-cause mortality at 30 days and 1 year was greater among patients with AKI (9.5% vs 1%, p <0.01% and 25.7% vs 12.3%, p = 0.041, respectively). Despite greater volume of contrast media used in Edwards SAPIEN versus CoreValve (162 ml vs 142 ml, p = 0.02), there was no difference in the incidence of AKI between the 2 valve types (23.7% vs 15.5%, p = 0.238) or when comparing larger (29 to 31 mm) versus smaller size valves (23 to 26 mm; 17.7% vs 16.1%, p = 0.745). AKI was associated with chronic kidney disease, history of peripheral vascular disease, blood transfusion, and higher EuroSCORE (p <0.05 for all). In conclusion, according to the new Valve Academic Research Consortium-2 classification, 1 in every 6 patients in our cohort developed AKI after TAVI (most were stage 1 AKI). AKI was associated with increased mortality. No difference in AKI incidence was observed between different types and sizes of bioprostheses used.

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