Abstract:
:The purpose of this study was to angioscopically observe the process of thrombolysis after intracoronary administration of thrombolytic agents and to investigate the effects of these agents on coagulation/fibrinolysis systems in dogs. The coronary endothelium was removed and thrombus formation was confirmed by angioscopy. In the tissue plasminogen activator (tPA) group (n=8), complete thrombolysis occurred in all animals, but thrombolysis was incomplete in the urokinase (UK) group (n=6). The plasma level of plasmin alpha2-plasmin inhibitor complex peaked at 15 minutes after treatment in both the tPA and UK groups. Plasma thrombin-antithrombin III (TAT) complex decreased transiently at 15 minutes after tPA administration but increased at 30 and 60 minutes (P<0.05). In the UK group, plasma TAT also showed a transient decrease followed by an increase, which was minimal compared with that in the tPA group. Plasma TAT decreased transiently after infusion of tPA and subsequently increased to above the pretreatment level, suggesting a risk of rethrombosis after successful recanalization.
journal_name
Angiologyjournal_title
Angiologyauthors
Maki A,Shirato C,Ohguchi M,Aoki N,Ochiai N,Taguchi S,Aoki I,Ishikawa Kdoi
10.1177/000331979804900605subject
Has Abstractpub_date
1998-06-01 00:00:00pages
447-53issue
6eissn
0003-3197issn
1940-1574journal_volume
49pub_type
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