Possible role of vascular intima for generation of coagulant activity in patients undergoing coronary thrombolysis with recombinant tissue-type plasminogen activator. A randomized, placebo-controlled study
| Autor: | Jørgen Jespersen, S. Munkvad, Jørgen Gram |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Adult
medicine.medical_specialty Adolescent Molecular Sequence Data Clinical Biochemistry Coronary Disease Fibrinogen Fibrin Thrombin Double-Blind Method Internal medicine medicine Humans Fibrinolytic agents Amino Acid Sequence Myocardial infarction Blood Coagulation Aged Fibrin degradation products biology Heparin business.industry Activator (genetics) General Medicine Middle Aged medicine.disease Coronary Vessels Recombinant Proteins Endocrinology Tissue Plasminogen Activator biology.protein Prothrombin business Plasminogen activator Fibrinolytic agent medicine.drug |
| Zdroj: | Munkvad, S, Gram, J & Jespersen, J 1991, ' Possible role of vascular intima for generation of coagulant activity in patients undergoing coronary thrombolysis with recombinant tissue-type plasminogen activator. A randomized, placebo-controlled study ', Scandinavian Journal of Clinical and Laboratory Investigation, vol. 51, no. 7, pp. 581-590 . https://doi.org/10.1080/00365519109104568 |
| ISSN: | 1502-7686 0036-5513 |
| Popis: | In our present placebo-controlled study on recombinant tissue-type plasminogen activator (rt-PA) and heparin treatment of patients with acute ischaemic heart disease (IHD), we studied the extent of fibrin resolution and generation of coagulant activity. In rt-PA treated patients the lysis of fibrin in vivo (median 60 nmol of fibrin--estimated as fibrinogen equivalents) was significantly higher (p less than 0.02) than can be accounted for solely by lysis of a coronary thrombus (approximately 2 nmol) and circulating soluble fibrin (median 15 nmol). We observed a 200% increase of plasma concentrations of both prothrombin fragment 1 + 2 (p less than 0.001) and thrombin-antithrombin III complexes (p less than 0.001) as a consequence of rt-PA treatment, indicating that the coagulant activity is primarily caused by a physiological activation of the coagulation system. We conclude that an important contribution to the activation of coagulation in patients undergoing coronary thrombolysis is lysis of fibrin deposited widespread on the vascular intima, and that this process causes an intimal-dependent activation of the coagulation system. |
| Databáze: | OpenAIRE |
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