Abstract |
The efficacy and safety of thrombolysis with different dose regimens of recombinant tissue plasminogen activator (rt-PA) and its combination with aspirin was tested in an embolic stroke model. In rats the carotid territory was embolized with a single clot formed in a polyethylene tube and washed with saline. Fifteen minutes after embolization 10 animals were treated with rt- PA 10 mg kg-1; 11 with 15 mg kg-1; 12 with 20 mg kg-1 and 9 with 10 mg kg-1 + 20 mg kg-1 aspirin and 34 animals with saline. Rt- PA 10 mg kg-1 reduced median infarct volume (in percent of the ipsilateral hemisphere volume) from 19.5 to 4.8; rt-PA 15 mg kg-1 to 2.0; rt-PA 20 mg kg-1 to 0.0, while rt- PA 10 mg kg-1 + aspirin resulted in a median infarct volume of 9.5%. Thrombolytic therapy significantly and dose dependently (p = 0.001) reduced the infarct volume, improved the presacrifice clinical score and increased (p = 0.02) angiographically verified reperfusion. There was no additional benefit of coadministration of aspirin.
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Authors | K Overgaard, T Sereghy, H Pedersen, G Boysen |
Journal | Neuroreport
(Neuroreport)
Vol. 3
Issue 10
Pg. 925-8
(Oct 1992)
ISSN: 0959-4965 [Print] England |
PMID | 1421100
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Fibrinolytic Agents
- Recombinant Proteins
- Tissue Plasminogen Activator
- Aspirin
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Topics |
- Animals
- Aspirin
(therapeutic use)
- Blood Gas Analysis
- Blood Pressure
(drug effects)
- Carotid Artery Thrombosis
(drug therapy)
- Cerebral Angiography
- Cerebral Infarction
(drug therapy, pathology, physiopathology)
- Cerebrovascular Circulation
(drug effects)
- Cerebrovascular Disorders
(drug therapy)
- Dose-Response Relationship, Drug
- Fibrinolytic Agents
(therapeutic use)
- Male
- Rats
- Rats, Sprague-Dawley
- Recombinant Proteins
(therapeutic use)
- Tissue Plasminogen Activator
(therapeutic use)
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