Background HEAT-PPCI compared bivalirudin and heparin in patients undergoing primary percutaneous coronary intervention. All patients received pre-procedural oral anti-platelet therapy, initially prasugrel (Pr) with some use of clopidogrel (C). Later, routine therapy switched to ticagrelor (T) (Figure 1a).
Methods During working hours, Multiple Electrode Aggregometry (MEA) was used to assess ADP-induced platelet aggregation at the end of the index procedure.
The effect of P2Y12 agents on MACE and major bleeding outcomes was assessed in all patients. Multiple logistic regression was used to adjust for baseline differences.
Results With MEA data from 469 patients, Pr therapy resulted in greater suppression of platelet aggregation - 1b.
In the entire study population Pr therapy was associated with reduced MACE. After adjustment there were no significant differences in the rates of MACE or major bleeding - 1c.
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