Contrast-Induced Nephropathy in Endovascular Patients: A Retrospective Cohort Study from a Vascular Surgery Clinic in...

Introduction: Contrast-induced nephropathy (CIN) has emerged as a prevalent and serious complication associated with the administration of iodinated contrast media during diagnostic and therapeutic procedures. Given the rising global prevalence of chronic kidney disease(CKD,) it is crucial to gain a deeper understanding of the risks linked to contrast media exposure. Therefore, the aim of this study, conducted at the Vascular Surgery Clinic in a tertiary hospital in Eastern Europe (Timisoara, Romania), is to assess the incidence of CIN and identify its associated risk factors among patients undergoing endovascular interventions. Methods: This retrospective cohort study was conducted using data from patients treated at a vascular surgery clinic in Timisoara, Romania, between 1 January 2018 and 31 December 2023. The study population included adult patients who underwent scheduled endovascular procedures and had serum creatinine measurements both before and after the procedure. Results: A total of 331 patients were included in the analysis (71.42% males with a mean age of 66.79 ± 9.86 years). In total, 9.22% of the patients had CKD, while 23.8% developed CIN. The mean age was significantly higher in the CIN group (68.4 years) compared to the non-CIN group (66.32 years) with a p-value of 0.093, indicating that older age is associated with a higher risk of CIN. A multivariate logistic regression analysis was performed to assess the association between various factors and the development of CIN. Higher hemoglobin levels were associated with reduced odds of CIN (OR = 0.792, 95% CI: 0.659-0.952, p = 0.0148), indicating that anemia is a significant risk factor for CIN, while CKD significantly increased the odds of CIN by 85.8% (OR = 1.858, 95% CI: 1.105-3.125, p = 0.0023), establishing CKD as a critical risk factor for CIN. Conclusions: While anemia and CKD were found to be significant predictors of CIN, further research on a wider population is required to validate these findings and explore additional risk factors. Our study shows that, in the context of elective endovascular procedures, addressing anemia correction and stabilizing creatinine levels to baseline represents a crucial strategy for reducing the risk of CIN.