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Predictors for Irreversibility of Contrast-Induced Acute Kidney Injury in Patients with Obesity After Contrast-Enhanced Computed Tomography Coronary Angiography

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Journal Adv Ther
Date 2024 Nov 11
PMID 39527336
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Abstract

Introduction: Although contrast-induced (CI) acute kidney injury (AKI) is a common complication in high-risk individuals requiring evaluation with contrast-enhanced angiography, the possible predictors of CI-AKI in patients with obesity are not fully understood. The aim of this study was to elucidate plausible factors associated with the irreversibility of CI-AKI in individuals with obesity undergoing contrast-enhanced computed tomography coronary angiography.

Methods: A total of 96 adult patients with obesity and the KDIGO criteria of CI-AKI (increase of serum levels of creatinine ≥ 25% or ≥ 500 µmol/L at 48 h after procedure) were retrospectively screened from the cohort of 1833 patients who underwent iodine contrast medium (ICM)-enhanced computed tomography coronary angiography, and were included in the study. The patients were divided into two cohorts: 96 adult patients with obesity and recovery of CI-AKI in 7 days after initiating of the event, and 57 individuals with irreversibility of CI-AKI. Serum concentrations of conventional biochemistry and urine biomarkers [i.e., hemoglobin, creatinine, high-sensitivity C-reactive protein, urinary albumin/creatinine ratio (UACR)] as well as natriuretic peptide, adropin, apelin, irisin, tumor necrosis factor-alpha (TNF-alpha), were determined at baseline. The levels of creatinine were measured at baseline, at the event, and in 7 days after the event.

Results: We identified 12 variables, which were associated with irreversibility of CI-AKI: age > 75 years [odds ratio (OR) = 1.22. P = 0.001], male gender (OR = 1.03, P = 0.042), stable coronary artery disease (OR = 1.06, P = 0.048), chronic kidney disease (CKD) 1-3 grade (OR = 1.60, P = 0.001), heart failure with preserved ejection fraction (HFpEF) (OR = 1.07, P = 0.046), baseline estimated GFR < 80 mL/min/1.73 m (OR = 1.10, P = 0.040), UACR > 17.5 mg/g Cr (OR = 1.05, P = 0.048), TNF-alpha > 3.11 pg/mL (OR = 1.12, P = 0.001), and adropin < 2.43 ng/mL (OR = 1.18, P = 0.001). After adjustment for CKD and UACR > 17.5 mg/g Cr, only HFpEF (OR = 1.06, P = 0.042) and adropin < 2.43 ng/mL (OR = 1.11, P = 0.001) remained independent predictors of CI-AKI irreversibility. Yet, adropin < 2.43 ng/mL at baseline exerted sufficiently better predictive ability than both HFpEF and preexisting CKD 1-3 grade.

Conclusion: In a multivariate prediction model adjusted for CKD and urinary albumin/creatinine ratio > 17.5 mg/g Cr, low levels of adropin (< 2.43 ng/mL) in individuals with non-morbid obesity together with the presence of HFpEF were independent predictors of CI-AKI irreversibility after ICM-enhanced computed tomography coronary angiography.

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