Renal function-based contrast dosing predicts acute kidney injury following transcatheter aortic valve implantation

Masanori Yamamoto, Kentaro Hayashida, Gauthier Mouillet, Bernard Chevalier, Kentaro Meguro, Yusuke Watanabe, Jean Luc Dubois-Rande, Marie Claude Morice, Thierry Lefèvre, Emmanuel Teiger

研究成果: Article

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Objectives: This study sought to assess whether the volume of contrast media (CM) influences the occurrence of acute kidney injury (AKI) following transcatheter aortic valve implantation (TAVI). Background: The volume of CM has been shown to be associated with increasing risk of AKI; however, in a high-risk elderly TAVI population, the predictive value and optimal threshold of CM dose on AKI remain uncertain. Methods: Data of 415 consecutive transfemoral TAVI patients (age 83.6 ± 6.8 years, logistic EuroSCORE 23.0 ± 12.2%) were analyzed. AKI was defined by Valve Academic Research Consortium criteria. Based on a previous formula, the ratio of CM to serum creatinine (SCr) and body weight (BW) (CM × SCr/BW) was calculated as defining the degree of CM use. The association between CM dose and incidence of AKI, as well as predictive factors and prognosis of AKI, were investigated. Results: AKI occurred in 63 patients (15.2%). Cumulative 1-year mortality showed significant differences between the AKI and non-AKI groups (47.9% vs. 15.7%, p < 0.001). Mean CM × SCr/BW ratio was higher in the AKI group than in the non-AKI group (4.1 ± 2.9 vs. 2.9 ± 1.6, p < 0.001). By multivariate analysis, CM × SCr/BW per 1.0 increase, ejection fraction <40%, and transfusion were associated with the occurrence of AKI (odds ratio [OR]: 1.16; 95% confidence interval [CI]: 1.03 to 1.20; p = 0.017, OR: 3.01; 95% CI: 1.49 to 5.00; p = 0.001, OR: 2.73; 95% CI: 1.54 to 6.15; p = 0.001, respectively). A threshold value of CM × SCr/BW for predicting AKI was statistically identified as 2.7. Conclusions: Although mechanisms of AKI following TAVI are multifactorial, the present study identified a relationship between CM dose increment and high prevalence of AKI. Therapeutic efforts not to exceed the threshold value may reduce the risk of AKI.

元の言語English
ページ(範囲)479-486
ページ数8
ジャーナルJACC: Cardiovascular Interventions
6
発行部数5
DOI
出版物ステータスPublished - 2013 5

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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    Yamamoto, M., Hayashida, K., Mouillet, G., Chevalier, B., Meguro, K., Watanabe, Y., Dubois-Rande, J. L., Morice, M. C., Lefèvre, T., & Teiger, E. (2013). Renal function-based contrast dosing predicts acute kidney injury following transcatheter aortic valve implantation. JACC: Cardiovascular Interventions, 6(5), 479-486. https://doi.org/10.1016/j.jcin.2013.02.007