Clinical Research Directory

Inclusion Criteria: Presence of complex coronary lesions defined as follows: * long lesions (\>28 mm); * CTO, a total occlusion of duration more than 3-months; * Lesions involving a bifurcation, defined as a division with a side branch large enough to be stented (i.e. \>2.25 mm); * Patients requiring 4 or more stents * Reference vessel diameter: \>2.25 mm to \<4.0 mm Exclusion Criteria: * Age under 18 years old; * Significant co-morbidity precluding clinical follow-up; * A positive pregnancy test in women with child-bearing potential; * Contra-indication to dual anti-platelet therapy; * Thrombocytopenia \<100,000/uL; * Major surgery planned which will lead to discontinuation of antiplatelet therapy; * In-stent restenosis; * Treatment of saphenous vein graft; * CTO with long sub-intimal tracking (\> 20 mm).