[Surgical strategies and long-term outcomes of total arterial coronary artery bypass grafting: a series of 208 patients].

To examine the short and long-term clinical outcomes of total arterial coronary artery bypass grafting. Clinic data of 208 patients with left main and multiple vessel coronary artery disease and undertaken total arterial coronary artery bypass grafting from February 2009 to December 2019 in Department of Cardiac Surgery, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine were analyzed retrospectively. There were 188 males and 20 females with an age of (54.7±10.7) years (range: 32 to 79 years). The harvest of arterial conduits and grafting strategies were depended upon the individual patient characteristics and surgeon's experience. Left internal thoracic artery (LITA) was applied in 207 cases, right internal thoracic artery (RITA) in 38 cases (bilateral internal thoracic artery (BITA) in 37 cases), and radial artery (RA) in 187 cases (188 grafts). The graft number per case was 2.6±0.7 (range: 2 to 4). Surgical procedures was completed with off-pump technique in 98.1% patients (204/208). Subgroup analysis was carried out between subgroup BITA (37) and subgroup SITA (single ITA+RA) (171). The test, χ(2) test or Fisher exact test were used to compare the clinic characteristics between the two subgroups. The Kaplan-Meier curve was used to estimate the rate of late mortality, major adverse cardiac cerebrovascular event (MACCE), and target vessel revascularization (TVR). A Cox proportional hazards model was used to identify the independent prognosis factors of late mortality. The overall mortality within 30 days postoperatively was 1.4%(3/208). The incidences of perioperative MACCE, re-operation for bleeding and deep sternal wound infection (DSWI) were 1.9%(4/208), 0.5%(1/208) and 1.4%(3/208), respectively. Perioperative myocardial infarction and TVR were not observed. There was no significant difference of 30-day mortality, MACCE, bleeding and DSWI between subgroup BITA and SITA+RA (all >0.05). In a follow-up period of (5.4±2.8)years (range: 0.2 to 10.9 years), the incidence of all-cause mortality at 1-, 5- and 10-year was 2.3%, 3.4% and 6.9%, respectively. The incidence of MACCE was 3.9%,11.2% and 28.5%, respectively. The rate of TVR was 0.4%, 3.7% and 11.9%, respectively. Age>65 was an independent prognosis factor of late mortality (=1.125, 95:1.050 to 1.205, 0.01). Total arterial coronary bypass grafting is safe and achievable with proper patient selection and surgical strategies. It significantly decreases the risks of late mortality and repeated revascularization.