Abstract
Background; Deterioration of native vessels and graft lumina after coronary artery bypass graft (CABG) results in an increasing need for repeat revascularization procedures. Percutaneous coronary intervention strategies are favored because of high operative risk and difficulty of complete revascularization of reoperation. Methods; We evaluated 14 patients (12 men and 2 women) who underwent coronary interventions with prior coronary artery bypass grafts; 31 interventions (elective 30, emergency 1), 41 procedures (POBA 34, cutting balloon 1, stent 6). Target lesions were assigned 27 native vessels (LAD 1, LCX 5, RCA 20, LMT 1) and 14 grafts (SVG 12, LITA 1, RITA 1). The procedures and lesions per patient were 2.1 and 2.9, respectively. Results; Initial procedual success rate was 93% (native 96%, graft 86%). Restenosis and reocclusion rates were 35% (native 48%, graft 17%) and 16% (native 0%, graft 42%), respectively. There was no major complications (death, Q-AMI, emergency CABG). Final clinical success rate was 62% (8/13). Conclusions; Coronary intervention after CABG was effective in high initial success rate, but the strategies for target lesions were important in procedures because of high restenosis and reocclusion rates.
