Good to hear SP2 [smiley=thumbsup.gif]

  I have had the same issues with the shoulder blade pain/numbness in fingers before.
 
   In my case, it was because I was sleeping in a bad position to try and compensate for another injury I had. It went away when I was able to do some stretches in that area plus neck stretches as well.

  Hopefully, your issue is more cervical/mechanical in nature than something related to your heart surgery?