The xDAPT External Validation Study

Percutaneous coronary intervention (PCI) is a catheter-based technique performed under fluoroscopic guidance to treat coronary artery disease and restore blood flow to the myocardium. During PCI, coronary vessel patency is generally achieved with drug-eluting stents (DES), which are metallic scaffolds coated with a polymer that carry and gradually release an antiproliferative drug. In the present study, all participants underwent PCI with implantation of DES, and received a subsequent course of dual antiplatelet therapy (DAPT), as clinically indicated.