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Updated: May 5, 2026

Ferric Chloride-induced Murine Thrombosis Models
Published on: September 5, 2016
Low ADAMTS-13 in plavix induced thrombotic thrombocytopenic purpura
Long Bao Cao1, Christopher Jones, Assad Movahed
1Long Bao Cao, Christopher Jones, Assad Movahed, Department of Cardiovascular Sciences, Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States.
Abstract:
Thrombotic thrombocytopenia purpura (TTP) was first described in 1924 as a "pathologic alteration of the microvasculature, with detachment or swelling of the endothelium, amorphous material in the sub-endothelial space, and luminal platelet aggregation leading to compromise of the microcirculation". Ticlopidine induced TTP has been highly associated with autoimmune induced reduction in ADAMTS-13 activity. These findings, to a lesser extent, have also been found in clopidogrel induced TTP. We report a case of clopidogrel associated TTP in a patient that presented with acute stroke, renal failure, and non-ST elevation myocardial infarction.
Insights
Thrombotic thrombocytopenia purpura (TTP) is a rare condition linked to antiplatelet drugs. This case highlights clopidogrel-induced TTP presenting with severe stroke, renal failure, and myocardial infarction.
Area of Science:
- Hematology
- Cardiology
- Neurology
Background:
- Thrombotic thrombocytopenia purpura (TTP) is a critical condition characterized by microvascular thrombosis.
- Drug-induced TTP, particularly associated with antiplatelet agents like ticlopidine and clopidogrel, is linked to reduced ADAMTS-13 activity.
Observation:
- A patient presented with acute stroke, renal failure, and non-ST elevation myocardial infarction.
- This clinical presentation was attributed to clopidogrel-associated TTP.
Findings:
- The case suggests a potential association between clopidogrel use and the development of TTP.
- The patient experienced severe thrombotic events, including stroke, myocardial infarction, and renal failure.
Implications:
- This case underscores the importance of considering drug-induced TTP in patients presenting with multi-organ thrombotic events.
- Awareness of clopidogrel's potential role in TTP is crucial for timely diagnosis and management.
- Further investigation into the mechanisms of clopidogrel-induced TTP and its association with ADAMTS-13 activity is warranted.
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