Fig. 1

Major adverse cardiac events free survival according to in-stent restenosis treatment strategy. Kaplan–Meier curves represent major adverse cardiac events (MACE)-free survival according to in-stent restenosis treatment strategy. Patients, who received medical treatment only, had the lowest MACE-free survival rate (13.4%). On the contrary, patients, who underwent coronary artery bypass graft surgery (CABG), had the best MACE-free survival rate (41.6%). They were followed by patients treated with percutaneous coronary intervention (Drug-eluting stents: 36.6% and drug-eluting balloon: 25.9%)