A 56-year-old man underwent percutaneous intervention with an unsuccessful attempt to open a chronic total occlusion of the right coronary artery and successful implantation of a 4 × 12 mm paclitaxel eluting stent in the circumflex. Before the procedure he received clopidogrel and aspirin and periprocedural anticoagulation was attained with 9000 units of unfractionated heparin (bodyweight 102 kg). The activated …