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Thrombus aspirated from patients with ST-elevation myocardial infarction: Clinical and angiographic outcomes
Yapan Yang1, Jingchao Li1, Wenke Xu2
11 Department of Cardiology, Zhengzhou University People's Hospital, Zhengzhou, China.
Insights
Red thrombi in acute myocardial infarction patients indicate longer ischemic times and increased in-hospital major adverse cardiovascular events compared to white thrombi. This finding highlights the clinical significance of thrombus composition in ST-elevation myocardial infarction.
Area of Science:
- Cardiology
- Pathology
Background:
- Acute myocardial infarction (AMI) is a critical cardiovascular event.
- Thrombus composition in AMI can influence clinical outcomes.
Purpose of the Study:
- To compare clinical and angiographic outcomes between red and white thrombi in ST-segment elevation myocardial infarction (STEMI) patients.
- To identify predictors of thrombus composition in STEMI.
Main Methods:
- Prospective study of 137 STEMI patients undergoing primary percutaneous coronary interventions.
- Thrombus material classified as red or white based on pathology.
- Analysis of clinical and angiographic data.
Main Results:
- Red thrombi were observed in nearly two-thirds of cases.
- The red thrombus group had significantly longer ischemic times.
- Higher incidence of in-hospital major adverse cardiovascular events (MACE) in the red thrombus group (15.6% vs. 0%).
- Ischemic time was the sole predictor of thrombus composition.
Conclusions:
- Red thrombi in STEMI are associated with prolonged ischemia and worse in-hospital outcomes.
- Thrombus pathology is a significant factor in STEMI management and prognosis.
Abstract:
Objective To investigate differences in clinical and angiographic outcomes between patients with acute myocardial infarction with red and white thrombi. Methods A total of 137 patients with ST-segment elevation myocardial infarction undergoing primary percutaneous coronary interventions were included. Thrombus material was classified as white or red based on its pathology. Information on characteristics of thrombi was available for 97 (70.8%) patients. Results The total ischaemic time was significantly longer in the red thrombus group compared with the white thrombus group. The incidence of major adverse cardiovascular events in hospital was higher in the red thrombus group than in the white thrombus group (15.6% vs 0%). Multivariable logistic analysis showed that the total ischaemic time was the only predictor of thrombus composition (odds ratio 1.353; 95% confidence interval 1.003, 1.826). Conclusion Red thrombi were present in nearly two-thirds of cases, and were associated with a longer ischaemic time and higher incidence of major adverse cardiovascular events in hospital.
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