ArticleAmerican journal of nephrology2026
Contrast Media in Hospitalized Patients with Acute Kidney Injury: Renal and Clinical Outcomes.
Article in American journal of nephrology, 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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Abstract
introductionAcute kidney injury (AKI) is a common complication among hospitalized patients and is associated with substantial morbidity and mortality. Intravenous contrast media are frequently used in diagnostic imaging, but data on its safety in patients with established AKI remain limited. This study prospectively assessed renal and clinical outcomes following intravenous contrast administration in hospitalized patients with AKI.
methodsIn this prospective observational study, we included hospitalized adults diagnosed with AKI who underwent CT imaging with or without intravenous contrast between January 2023 and March 2024. The primary outcome was renal recovery within 7 days, defined as return of serum creatinine to baseline. Secondary outcomes included renal improvement within 72 h, dialysis requirement after CT, length of stay, and in-hospital mortality. Analyses were performed using inverse probability weighting (IPW), with propensity score matching (PSM) as a secondary robustness analysis.
resultsA total of 481 patients were analyzed; 282 received contrast and 188 did not. After IPW adjustment, renal recovery within 7 days occurred in 61.7% of the contrast group vs. 47.3% of the non-contrast group (OR: 1.7, 95% CI: 1.0-2.97, p = 0.05). Secondary outcomes were similar between groups. Results were consistent in a secondary PSM analysis. In the overall cohort, higher AKI stage and acute tubular injury were independently associated with lower recovery odds.
conclusionIn hospitalized patients with AKI, intravenous contrast administration was not associated with worse renal or clinical outcomes, suggesting that contrast-enhanced CT may be acceptable in selected clinical settings.
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