At a glance
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"Transcranial Doppler Assessment of Cerebral Embolization During Early Anti-thrombotic Therapy After Bioprosthetic Aortic Valve Replacement: Comparison of High-dose Aspirin Versus Warfarin Plus Low-dose Aspirin"
In Brief
An observational study evaluating Prophylaxis of Thrombosis after aortic valve replacement for Aortic Valve Disease. Completed, enrolled 70 participants across 1 site.
Detailed Summary
The purpose of this study is to determine if there is any difference in the counts of cerebral emboli and platelet function between two prophylactic treatments of thrombosis currently used at University of Ottawa Heart Institute for the first three months after surgery in low-risk patients undergoing aortic valve replacement with a bioprosthetic valve: 1) daily use of high-dose aspirin \[325 mgs\], and 2) the combination of oral Warfarin \[target INR 2.0 to 3.0\] and low-dose aspirin \[81 mg\].
Study Details
Timeline
Interventions
Two standard prophylactic treatments of thrombosis within the first 3 months postsurgery currently used in our institution: a) daily dose of aspirin (325 mgs; b) daily dose of aspirin (81 mg) plus Warfarin for target INR 2.0-2.5