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Can Thrombus Burden Predict Contrast-Induced Nephropathy in Patients With ST-Segment Elevation Myocardial Infarction?
Serhat Sigirci1, Kudret Keskin1, Süleyman Sezai Yildiz1
11 Department of Cardiology, Sisli Hamidiye Etfal Education and Research Hospital, Istanbul, Turkey.
Insights
Large thrombus burden increases the risk of contrast-induced nephropathy (CIN) in ST-segment elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention. Angiographic thrombus burden is a key predictor of CIN.
Area of Science:
- Cardiology
- Nephrology
- Interventional Cardiology
Background:
- Contrast-induced nephropathy (CIN) incidence rises with cardiovascular disease severity.
- Platelet activation and thrombus burden are implicated in CIN pathophysiology.
- ST-segment elevation myocardial infarction (STEMI) patients are at high risk for CIN.
Purpose of the Study:
- To investigate the impact of thrombus burden on CIN development in STEMI patients.
- To identify predictors of CIN in STEMI patients undergoing primary percutaneous coronary intervention.
Main Methods:
- 883 STEMI patients undergoing primary percutaneous coronary intervention were enrolled.
- Patients were categorized by thrombus burden (Thrombolysis In Myocardial Infarction Thrombus Grades) and CIN development.
- Multivariate logistic regression analysis was used to identify independent predictors of CIN.
Main Results:
- 14.2% of STEMI patients developed CIN; 35.4% had large thrombus burden (TG 4).
- CIN (+) patients were older, had lower hemoglobin and ejection fraction, and received more contrast media.
- Large thrombus burden, age, hypertension, and admission glomerular filtration rate were independent predictors of CIN.
Conclusions:
- Thrombus burden, assessed via angiography, is a significant predictor of CIN in STEMI patients.
- Measuring thrombus burden can aid in stratifying CIN risk.
- Early identification of high-risk patients allows for targeted preventive strategies.
Abstract:
The incidence of contrast-induced nephropathy (CIN) increases in the range from patients with unstable angina to ST-segment elevation myocardial infarction (STEMI). Platelet activation has been associated with pathophysiology of nephropathy and thrombus burden in the infarct-related arteries. We investigated the impact of thrombus burden on CIN in patients with STEMI. We enrolled 883 patients with STEMI who received primary percutaneous coronary intervention. Patients were divided into groups according to thrombus burden and CIN development. Thrombus burden was scored based on thrombolysis in myocardial infarction thrombus grades (TGs). Thrombus grade 4 was defined as large thrombus burden (LTB), while thrombus burden
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