The number of aortic surgeries performed by a surgeon is an indicator of expertise, with those performing the operation three times a week being superior to those performing it five times a year.

“you want the guy who's the man today and it's you know with aortic surgery it's really about the reps like you want someone who's doing that operation constantly and he's doing that operation three times a week the average cardiac surgeon might be doing that operation five times a year”