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  • Title: Intra-aortic balloon pump implantation does not affect long-term survival after isolated CABG in patients with acute myocardial infarction.
    Author: Joskowiak D, Szlapka M, Kappert U, Matschke K, Tugtekin SM.
    Journal: Thorac Cardiovasc Surg; 2011 Oct; 59(7):406-10. PubMed ID: 21442579.
    Abstract:
    BACKGROUND: Intra-aortic balloon pump (IABP) is an established therapy to support patients with heart failure during coronary artery bypass grafting (CABG). The impact of the timing of IABP on the hospital course and on follow-up is of particular clinical interest. The purpose of this study was to analyze the relationship between the time of IABP implantation and its impact on early, mid- and long-term survival in patients with acute myocardial infarction (AMI) who underwent emergent CABG for NSTEMI and STEMI. METHODS: A total of 472 patients with AMI (NSTEMI and STEMI) underwent emergency CABG at our institution; 158 of them additionally received IABP support. Fifty-seven (36 %) patients received preoperative and 101 (64 %) patients underwent intraoperative IABP implantation. Endpoints were in-hospital und follow-up (mean duration 37 ± 28 months) survival. RESULTS: Overall in-hospital mortality was 17.1 % (n = 27): 17.6 % (n = 10) in the preoperative group and 16.8 % (n = 17) in the intraoperative group ( P = ns). Mid- and long-term survival rates were comparable for both groups 78.6 % vs. 73.7 %, 71.4 % vs. 68.7 % and 64.3 % vs. 54.6 % at 1, 3 and 5 years, respectively ( P = ns). CONCLUSION: This study demonstrates that CABG with IABP support in high-risk patients with AMI can be performed with acceptable in-hospital and long-term survival rates. The decision for IABP placement should consider the preoperative clinical condition and the intraoperative course of each patient. IABP placement does not appear to affect the long-term outcome after isolated CABG in patients with AMI.
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