Is it safe to have a BA if you've had a previous heart problem?

Dear justenne,If you are considering a surgery, I would suggest you to consult a board-certified plastic surgeon. Only after a thorough examination you will get more information and recommendations. You will most likely need a clearance from your cardiologist. Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

Thank you for the question.
 Breast  procedures can be done safely for patients with a variety of different “medical conditions”. Careful evaluation and treatment of the medical condition is necessary prior to determining the appropriate candidates for the  breast procedure.  In your case this would be best done by your cardiologist.  The physicians who know your situation best would be best suited  to discuss your suitability for the procedure and the potentially increased risks/complications that you should consider.  This process is called obtaining "medical clearance". These doctors will also be able to communicate with your plastic surgeon in regards to specific pre/intra/post operative considerations (including management of medications…).   
 
Also, please make sure you are seeking consultation with  well experienced board-certified  plastic surgeons who preferably work with board-certified anesthesiologists in fully accredited surgery facilities.
I hope this helps.  Best wishes.