I'll disagree tgilson about it being difficult to get class 1 back. I personally know 2 guys stented and still operating as P1 of large aeroplanes - 777 and 330/340.
Certainly there are hoops to jump through - but often the ticker is fine, just the plumbing around it that's the problem and the stents followed by x months of plavix should sort those out! In fact, one of the guys has no multi-pilot restriction on his class1. Amazed me even
I for one have every intention of flying for my supper again! Good luck to you in getting your medical back
