ArticleCureus2026
Renal Resistive Index as a Novel Predictor of Contrast-Induced Acute Kidney Injury in Cirrhosis.
Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
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Abstract
backgroundPatients with liver cirrhosis undergo repeated contrast-enhanced imaging procedures. We investigated the risk factors for contrast-induced acute kidney injury (CI-AKI) in cirrhotic patients with normal renal function.
methodsA prospective observational cohort study included 110 consecutive patients with cirrhosis who underwent iodinated contrast (IC)-based imaging procedures. Baseline demographic, clinical, and laboratory data and Renal Resistive Index (RRI) were recorded prior to imaging. All patients were assessed for the development of CI-AKI 48-72 hours after contrast administration.
resultsA total of 34 (30.9%) patients developed CI-AKI after contrast administration. Prior history of acute kidney injury (AKI) was seen in 18 (52.9%) patients who developed CI-AKI and 4 (5.3%) patients who did not develop CI-AKI (p < 0.001). Alcohol-related liver disease was the major etiological factor of cirrhosis in 18 (52.9%) patients with CI-AKI as opposed to 23 (30.3%) patients without CI-AKI (p = 0.047). Baseline estimated glomerular filtration rate (eGFR) and serum creatinine levels were not associated with an increased risk of CI-AKI. Higher values of baseline RRI were seen in patients who developed CI-AKI. On univariate analysis, gender, prior history of AKI, grade III ascites, hepatic encephalopathy, Child-Turcotte-Pugh (CTP) score, Model for End-Stage Liver Disease-Sodium (MELD-Na), and Renal Resistive Index (RRI) were found to be significant risk factors for predicting CI-AKI. On multivariate analysis, Renal Resistive Index (RRI), CTP score, and MELD-Na score were associated with an increased risk of CI-AKI. Preprocedural RRI >0.62, CTP score >10, and MELD-Na >24 had significant predictive value for the occurrence of CI-AKI.
conclusionAdvanced liver cirrhosis was associated with an increased risk of CI-AKI. RRI is an easily available and simple radiologic technique to predict the occurrence of CI-AKI among patients with liver cirrhosis with normal renal function tests.
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