A prediction model of contrast-associated acute kidney injury in patients with hypoalbuminemia undergoing coronary angiography

Autor: Liwei Liu, Jin Liu, Li Lei, Bo Wang, Guoli Sun, Zhaodong Guo, Yibo He, Feier Song, Zhubin Lun, Bowen Liu, Guanzhong Chen, Shiqun Chen, Yongquan Yang, Yong Liu, Jiyan Chen
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: BMC Cardiovascular Disorders, Vol 20, Iss 1, Pp 1-10 (2020)
Druh dokumentu: article
ISSN: 1471-2261
DOI: 10.1186/s12872-020-01689-6
Popis: Abstract Background Risk stratification is recommended as the key step to prevent contrast-associated acute kidney injury (CA-AKI) among at-risk patients following coronary angiography (CAG) and/or percutaneous coronary intervention (PCI). Patients with hypoalbuminemia are prone to CA-AKI and do not have their own risk stratification tool. Therefore, this study developed and validated a new model for predicting CA-AKI among hypoalbuminemia patients CAG/PCI. Methods 1272 patients with hypoalbuminemia receiving CAG/PCI were enrolled and randomly allocated (2:1 ratio) into the development cohort (n = 848) and the validation cohort (n = 424). CA-AKI was defined as an increase of ≥0.3 mg/dL or 50% in serum creatinine (SCr) compared to baseline in the 48 to 72 h after CAG/PCI. A prediction model was established with independent predictors according to stepwise logistic regression, showing as a nomogram. The discrimination of the new model was evaluated by the area under the curve (AUC) and was compared to the classic Mehran CA-AKI model. The Hosmer-Lemeshow test was conducted to assess the calibration of our model. Results Overall, 8.4% (71/848) patients of the development group and 11.2% (48/424) patients of the validation group experienced CA-AKI. A new nomogram included estimated glomerular filtration rate (eGFR), serum albumin (ALB), age and the use of intra-aortic balloon pump (IABP); showed better predictive ability than the Mehran score (C-index 0.756 vs. 0.693, p = 0.02); and had good calibration (Hosmer–Lemeshow test p = 0.187). Conclusions We developed a simple model for predicting CA-AKI among patients with hypoalbuminemia undergoing CAG/PCI, but our findings need validating externally. Trial registration http://www.ClinicalTrials.gov NCT01400295 , retrospectively registered 21 July 2011.
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