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Impact of previous coronary artery bypass grafting on patients undergoing transcatheter aortic valve implantation for aortic stenosis



Impact of previous coronary artery bypass grafting on patients undergoing transcatheter aortic valve implantation for aortic stenosis



American Journal of Cardiology 113(7): 1222-1227



Re-operation after coronary artery bypass grafting (CABG) is associated with increased risk for morbidity and mortality. Transcatheter aortic valve implantation (TAVI) is an alternative for patients with aortic stenosis, but the outcomes of patients with a history of CABG are unknown. The aim of this study was to explore the association between previous CABG and the outcome of patients undergoing TAVI. Out of 372 consecutive patients who underwent TAVI from 2007 to 2013, 122 (32.8%) had previous CABG, whereas 250 (67.2%) did not. A comparison was made between groups. Subgroup analysis compared patients with and without previous CABG in 3 patient subsets: inoperable, operable, and those who underwent transapical TAVI. Patients with previous CABG were younger (81.99±6.78 vs 84.81±7.06 years, respectively, p<0.001). These patients also had more high-risk features (e.g., peripheral vascular disease, previous myocardial infarction, past cerebrovascular disease, and lower average left ventricular ejection fraction (p<0.05 for all). Procedural aspects were mostly similar between groups. No disparities in mortality rates at 1 year were noted (22.1% vs 21.6%, respectively, p=0.91). Subgroup analyses yielded similar outcomes for all 3 groups. In conclusion, although patients with previous CABG present with more high-risk features, they share similar short- and long-term outcomes with patients without previous CABG, irrespective of their surgical risk. This includes patients who underwent transapical access. TAVI in patients with previous CABG is safe and does not confer a significant risk for adverse outcome.

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Accession: 053722549

Download citation: RISBibTeXText

PMID: 24513466

DOI: 10.1016/j.amjcard.2013.12.029


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