The network meta-analysis of aortic no touch techniques provides a “Class 1, Level of evidence B’ indication for minimising the aortic manipulation during CAGS.
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 Zhao DF, Edelman JJ, Seco M, Bannon PG, Wilson MK, Byrom MJ, et al.
Coronary artery bypass grafting with and without manipulation of the
ascending aorta: A network meta-analysis. J Am Coll Cardiol 2017;69: