Effect of Aspirin at the Acute Phase of Cerebral Ischemic Event.
Summary
Aspirin is the only anti-platelet medication used at the acute phase of ischemic stroke. The investigators would like to study laboratory effect of the first oral 300 mg dose of aspirin, given at hospital, after an ischemic event.
The principal hypothesis is that platelet activity would be able to recover during this day and could lead to ischemic recurrences.
Two blood samples are accomplished. The first 2 hours after aspirin intake and the second 23 hours after. Photometric aggregometry are performed with arachidonic acid and collagen induced platelet aggregation, measure of thromboxan B2 levels and reticular platelets count.
Study Design
Endpoint Classification: Pharmacokinetics/Dynamics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Conditions
Ischemic Stroke
Intervention
Aspirin, blood sample
Location
Hopital central
Nancy
France
54035
Status
Recruiting
Source
Central Hospital, Nancy, France
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT01375400
- Information obtained from ClinicalTrials.gov on July 18, 2011
Published on BioPortfolio: 2014-08-27T04:00:24-0400
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Medical and Biotech [MESH] Definitions
Aspirin, Dipyridamole Drug Combination
A drug combination of aspirin and dipyridamole that functions as a PLATELET AGGREGATION INHIBITOR, used to prevent THROMBOSIS and STROKE in TRANSIENT ISCHEMIC ATTACK patients.
Reperfusion
Restoration of blood supply to tissue which is ischemic due to decrease in normal blood supply. The decrease may result from any source including atherosclerotic obstruction, narrowing of the artery, or surgical clamping. It is primarily a procedure for treating infarction or other ischemia, by enabling viable ischemic tissue to recover, thus limiting further necrosis. However, it is thought that reperfusion can itself further damage the ischemic tissue, causing REPERFUSION INJURY.
Sodium Salicylate
A non-steroidal anti-inflammatory agent that is less effective than equal doses of ASPIRIN in relieving pain and reducing fever. However, individuals who are hypersensitive to ASPIRIN may tolerate sodium salicylate. In general, this salicylate produces the same adverse reactions as ASPIRIN, but there is less occult gastrointestinal bleeding. (From AMA Drug Evaluations Annual, 1992, p120)
Asthma, Aspirin-induced
Asthmatic adverse reaction (e.g., BRONCHOCONSTRICTION) to conventional NSAIDS including aspirin use.
Optic Neuropathy, Ischemic
Ischemic injury to the OPTIC NERVE which usually affects the OPTIC DISK (optic neuropathy, anterior ischemic) and less frequently the retrobulbar portion of the nerve (optic neuropathy, posterior ischemic). The injury results from occlusion of arterial blood supply which may result from TEMPORAL ARTERITIS; ATHEROSCLEROSIS; COLLAGEN DISEASES; EMBOLISM; DIABETES MELLITUS; and other conditions. The disease primarily occurs in the sixth decade or later and presents with the sudden onset of painless and usually severe monocular visual loss. Anterior ischemic optic neuropathy also features optic disk edema with microhemorrhages. The optic disk appears normal in posterior ischemic optic neuropathy. (Glaser, Neuro-Ophthalmology, 2nd ed, p135)
