Inflammatory milieu in contrast-induced nephropathy: a prospective single-center study

Area of Science:

• Nephrology
• Cardiology
• Biomarkers

Background:

• Contrast-induced nephropathy (CIN) is a frequent complication of radiocontrast media exposure.
• CIN increases patient hospitalization duration and healthcare costs.
• Inflammation plays a role in CIN pathogenesis.

Purpose of the Study:

• To investigate the predictive value of inflammatory markers, specifically Interleukin-33 (IL-33), for CIN development.
• To assess the association between IL-33 and CIN in patients undergoing contrast procedures.

Main Methods:

• Prospective study involving 202 cardiology patients in Jordan.
• CIN defined as a 25% or 44 μmol/L rise in serum creatinine within 48-72 hours post-contrast.
• Exclusion criteria included advanced renal failure, dialysis, recent contrast, infection, or cancer.

Main Results:

• 30 patients (14.8%) developed CIN; incidence was higher in females (21.1%) than males (12.4%).
• Multivariate analysis identified IL-33 as significantly associated with CIN.
• Other investigated cytokines did not show a significant association with CIN.

Conclusions:

• Elevated serum IL-33 levels are a significant predictor of CIN development.
• IL-33 can help stratify patients into low and high risk categories for CIN.
• Clinical assessment combined with IL-33 levels can improve CIN risk prediction.