Background The best option on the treatment of coronary bifurcation lesions is a subject of considerable debate.However,recent evidence suggests that bifurcation lesions might be treated by drug-eluting stent on both branches using the modified mini-crush (MMC) technique with a low rate of major adverse cardiac event and restenosis.This retrospective study sought to assess the clinical and angiographic long-term outcome after implanting drug-eluting stents in the bifurcation lesions of left anterior descending artery (LAD) with the Cullotte technique and MMC technique.