MedicalResearch.com Interview with:
Geoffrey Barnes, MD, MSc
Vascular and Cardiovascular Medicine
University of Michigan
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Both aspirin and warfarin are commonly used medications meant to prevent thrombotic complications, but might increase rates of bleeding complications.
We used a multi-center anticoagulation collaborative to explore how often patients being treated with warfarin were also taking aspirin but without a clear indication. We found that more than one-third (37.5%) of warfarin-treated patients without a clear reason for aspirin therapy were receiving aspirin. And these patients on both warfarin and aspirin experienced higher rates of bleeding and emergency department visits for bleeding than the patients taking warfarin alone. There were no differences in the rate of thrombotic events between the patients taking warfarin alone or those taking warfarin plus aspirin. Continue reading