In patients with coronary artery disease and heart failure, the addition of coronary-artery bypass grafting to medical therapy has no effect on the overall risk of death from any cause, but assessment of suitability for surgery may predict survival benefit in subgroups
Evid Based Med. 2012 Dec;17(6):178-9.
doi: 10.1136/ebmed-2012-100641.
Epub 2012 Jun 26.