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Published on: May 23, 2025
Contribution of platelets indices in the development of contrast-induced nephropathy
Irfan Sahin1, Ahmet Karabulut, Ilhan Iker Avci
1aDepartment of Cardiology, Bagcilar Public Education and Research Hospital bDepartment of Cardiology, Istanbul Medicine Hospital cDepartment of Cardiology, Siyami Ersek Cardiovascular and Thoracic Surgery Center, Istanbul, Turkey dJohns Hopkins University, Baltimore, Maryland, USA.
Insights
Platelet distribution width (PDW), not mean platelet volume (MPV), is linked to contrast-induced nephropathy (CIN) development in acute coronary syndrome patients. Higher PDW levels independently predict CIN, suggesting platelet activation may play a role.
Area of Science:
- Nephrology
- Cardiology
- Hematology
Background:
- Contrast-induced nephropathy (CIN) is a significant cause of hospital-acquired renal failure, prolonging hospital stays and predicting poor outcomes.
- The exact mechanisms underlying CIN remain multifactorial and not fully understood.
- The association between platelet indices, specifically mean platelet volume (MPV) and platelet distribution width (PDW), and CIN has not been previously investigated.
Purpose of the Study:
- To investigate the correlation between MPV and PDW levels and the development of CIN in patients with acute coronary syndrome.
- To identify independent predictors of CIN in this patient population.
Main Methods:
- A prospective study evaluated 430 patients diagnosed with acute coronary syndrome.
- CIN incidence was assessed, and initial creatinine, MPV, PDW levels, and contrast media volume were recorded.
- Univariate and multivariate regression analyses were performed to identify predictors of CIN.
Main Results:
- The incidence of CIN was 20.5%.
- Patients who developed CIN had higher initial creatinine, PDW levels, and received a greater total volume of contrast media.
- Multivariate analysis identified total contrast media volume, age, and increased PDW levels as independent predictors of CIN. MPV was not significantly associated with CIN.
Conclusions:
- Increased platelet distribution width (PDW) is an independent predictor of contrast-induced nephropathy (CIN) in patients with acute coronary syndrome.
- Mean platelet volume (MPV) was not found to be associated with CIN development.
- The findings suggest a potential role for platelet activation in the pathogenesis of CIN, warranting further investigation.
Abstract:
Contrast-induced nephropathy (CIN) accounts for 10% of hospital-acquired renal failure, causes a prolonged in-hospital stay and represents a powerful predictor of poor clinical outcome. The underlying mechanism of the CIN development remains unclear and seems to be multifactorial. The potential link between platelet indices such as mean platelet volume (MPV) and platelet distribution width (PDW) with CIN is unknown. Herein, we aimed to investigate the correlation between MPV and PDW levels with the development of CIN. The incidence of CIN (20.5%) was prospectively evaluated in 430 patients with diagnosis of acute coronary syndrome. Initial creatinine (1.13 ± 0.25 vs. 1.05 ± 0.27 mg/dl, P = 0.01) and PDW (40.1 ± 20.2 vs. 34.5 ± 19.9%, P = 0.02) levels and the total volume of contrast media used (121 ± 61 vs. 94 ± 42 ml, P = 0.01) were higher in patients who developed CIN. MPV was similar between the two groups (P = 0.80). In a univariate regression analysis, age, increased creatinine, uric acid, phosphate, PDW levels and higher total volume of contrast media used were significantly correlated with CIN incidence. However, in a multivariate analysis, only total volume of CM used [odds ratio (OR) 1.011, 95% confidence interval (CI) 1.006-1.016; P = 0.01], increased age (OR 1.026, 95% CI 1.00-1.052; P = 0.05) and increased PDW levels (OR 1.009, 95% CI 1.00-1.022; P = 0.04) remained as the independent predictors of CIN. Among platelet indices, PDW, but not MPV, was associated with CIN development. The clinical significance of such link remains unclear, but may indicate involvement of platelet activation in CIN pathogenesis.
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