the Department of Cardiology, Concord Hospital,

We conducted an observational study to compare singleantiplatelet therapy with dualantiplatelet therapy among patients requiring long-term warfarin therapy after coronary stenting. Results showed that there was no difference in mortality or myocardial infarction between the 2 treatment regimens at 6 months, with no excess in-hospital bleeding; however, larger trials are needed to determine firm recommendations.