The first couple of articles that I read about this indicated that Arnold had the less-invasive procedure, similar to the one I had, to replace his heart valve, but now it's being reported that it failed and they had to perform the more traditional, open-heart procedure.
When I had my surgery, they also had a surgical team standing by just-in-case, but my procedure went-off with very few issues, for which I was really glad.
OCU