I have had two sternotomy openings with the most recent being four years ago. I am feeling a little sad that I can hardly find the scar except in a few spots along the length. It has just about faded to invisible. The irony is I am a woman who really wasn't all that bothered when I wore v-necks or low cut tops and my scar was visible when it was new. If your scar doesn't heal smoothly and it bothers you, we've had members here who have sought help from dermatologist and maybe plastic surgeons.
I doubt most heart surgeons will agree to a plastic surgeon closing and it probably would make little difference.
Just make sure your surgeon does not intend to use staples. They leave the most obvious scar.
I had glue and steri-strips each time.
I agree with the others that heart surgeons are very good now at closing incisions that usually look great after you heal, Especially as JK mentions IF they use glue/steristrips type closing of the skin layer of the incision and not staples or stitches. (which do tend to leave a worse looking scar - that is where the "zipper" description came from, which is probably what I would ask about preop if you are worried about a scar. Also depends on what kind of scarring YOU usually have, but from our experience, IF you tend to build bigger or keloidy types scars, it doens matter what kind of surgeons close you.
Beside the fact heart surgeons routinely close their patients in the nicest way, my GUESSS would be, trying to have a plastic surgeon hanging around to close the upper layers, would probably be a pretty long, tough thing to try and arrange and would most likely cause you alot of extra work and aggrevation at a time you probably wouldnt want to add more stress to your life. I really doubt unless there is a very good reason, even IF the heart surgeon would agree to it, that insurance would approve paying a plastic surgeons to close a first time sternotomy without extenuating circumstanses, at least without several appeals that would most likely move your surgery date and youd most likely end up with the heart surgeon closing at the end of the day anyway.
ALSO from our personal experience, because Justin had to have both a heart surgeon and plastic surgeon work on him for his surgery for his sternal and below his sternum infection, when his sternum and around his heart needed cleaned up and a muscle moved ( Plasitic closed his incions because his part of the surgery was after the heart surgeon was done) and ALMOST had another surgery a year later needing both sugeons, unless it is an emergency case, that would bump "elective" heart and plastic surgery patients, it can be very hard to coordinate a time that both surgeons can fit you in their schedual, since both can be pretty booked up weeks/months ahead for elective surgeries. Since you might not have a preference which plastic surgeon you want, it probably wouldnt be as bad as when we wanted a specific heart and specific plastic surgeons (the one who did his previous surgery) so had to find a time they both were available, but still Im not sure if it would be possible to arrange to have a plastic surgeon this close to your surgery date, depending how many plastic surgeons are on staff there.
BTW Justin's scar pretty much looked the same (pretty good) when he had a couple dfferent heart surgeons or the plastic, altho ike JK he never had stitches or staples outside, even the surgeries over 20 years ago