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Study of persistent platelet reactivity during acute coronary syndrome. Patients are included at admission to the hospital. Platelet aggregation is evaluated by platelet function testing after blood sampling during hospitalization. No changes in treatment is planned.
Blood samples are performed on day 2 and 4 and collected with usual blood samples and analyzed by the laboratory. Maximal aggregation intensity and velocity are measured by light transmission aggregometry induced by arachidonic acid (AA) or adenosine diphosphate (ADP). Platelet function analyzer will be also used. No changes in treatment in response to the results is planned.
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| Measure | Description | Time Frame |
|---|---|---|
| maximum aggregation intensity | Light transmission aggregometry following exposition to arachidonic acid 0.5mg/ml during the acute phase (day2-day 5) | day 2 |
| Measure | Description | Time Frame |
|---|---|---|
| Maximum aggregation intensity | Light transmission aggregometry following exposition to adenosine diphosphate during the acute phase (day2-day 5) and during the chronic phase (day 30-day 60) | Day 2 |
| Maximum aggregation intensity |
| Measure | Description | Time Frame |
|---|---|---|
| Major cardiovascular and cerebrovascular events (MACCE) | Major cardiovascular and cerebrovascular events : death, myocardial infarction, stroke, rehospitalisation and bleeding (academic research consortium) events at 1 year | one year |
| microvascular resistance index |
Inclusion Criteria:
Exclusion Criteria:
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Acute coronary syndrome
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| Name | Affiliation | Role |
|---|---|---|
| Patrick Henry, MD-PhD | Department of Cardiology - Lariboisiere Hospital - APHP | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Cardiology - Lariboisiere Hospital | Paris | 75010 | France |
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| ID | Term |
|---|---|
| D054058 | Acute Coronary Syndrome |
| ID | Term |
|---|---|
| D017202 | Myocardial Ischemia |
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
| D014652 | Vascular Diseases |
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Blood samples
Light transmission aggregometry following exposition to arachidonic acid 0.5mg/ml during the chronic phase (day 30-day 60)
| Chronic phase (day 30 to day 60) |
measurement during primary PCI on admission |
| Day 1 |