Application of bilateral internal mammary artery with different configurations in coronary artery bypass grafting

Abstract Background A large number of studies have shown that BIMA grafting is superior to single internal mammary artery in cardiac function protection and long-term survival after surgery. While, there still no consensus on how the best configuration use BIMA. This study aims compare intraoperative blood flow, early clinical results postoperative patency different configurations Methods There were 74 patients who underwent CABGs with bilateral we included. According target territories RIMA grafted to, divided into group (group I) 20 cases left II) 54 cases. Intraoperative compared. Results was difference death major complications between I Group II( P >0.05). Compared LIMA II, had a slightly higher DF value (76.7 ± 6.2 vs 73.1 6.8, = 0.040). MGF (51.7 34.4 ml/min 31.4 21.4 ml/min, 0.024). other TTFM parameters II(P>0.05). Further subgroup analysis revealed compared free situ (71.4 7.8 61.8 18.1, 0.025). The PI than in-situ (3.0 1.6 2.1 1.0, 0.018). CTA examination showed all IMAs grafts completely patent. Conclusions for CABG safe efficacious, used right coronary received more satisfactory graft flow. stenosis occlusion stage, therefore ideal stable bypass graft.