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  • Title: Outcome of emergency conventional coronary surgery for acute coronary syndrome due to left main coronary disease.
    Author: Hata M, Shiono M, Sezai A, Iida M, Yoshitake I, Wakui S, Taoka M, Negishi N, Sezai Y.
    Journal: Ann Thorac Cardiovasc Surg; 2006 Feb; 12(1):28-31. PubMed ID: 16572071.
    Abstract:
    BACKGROUND: Outcomes of emergency coronary artery bypass grafting (CABG) for acute coronary syndrome (ACS) due to left main coronary (LMT) disease remain unclear. This study aimed to assess prognoses for patients undergoing emergency CABG for ACS due to LMT disease. METHODS: One hundred and four patients undergoing emergency CABG for ACS due to LMT disease were retrospectively reviewed. All patients had intra-aortic balloon pumping (IABP) support and underwent surgery within 48 hours after onset. We determined predictors for operative mortality and calculated cardiac event free, actuarial survival, and cumulative graft patency rates. RESULTS: We found that 9 patients (8.7%) developed pre-operative cardiogenic shock and 7 of them required percutaneous cardiopulmonary support (PCPS). Operative mortality affected 9 patients (8.7%). Cardiac event free rate and actuarial survival rate at 10 years were 80.7 and 75.4%, respectively. Logistic regression analysis showed that pre-operative cardiogenic shock was the only predictor for operative mortality (p = 0.0146, odds 5.96). Cumulative graft patency rates for internal thoracic artery and saphenous vein (SVG) at 5 years were 92.6 and 72.4%, respectively. One year-graft patency rate for the radial artery (RA) was 100%. CONCLUSION: It is still very hard to treat patients with cardiogenic shock. We suggest that immediate percutaneous coronary intervention (PCI) with mechanical supports is required prior to CABG for survival of patients with left main shock syndrome.
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