Objective
Platelet aggregation is one of the most important part of the platelet function, and plays a key role in thrombosis. Efficient detection of platelet aggregation has important clinical significance. Heart valve replacement is an effect way to cure cardiac valvular disease, but the patients after heart valve replacement need life-long anticoagulation. There are still thrombosis complications while using warfarin anticoagulation through monitoring PT and INR in the ideal range. At prese...