I have undergone CABG in Feb 2015. My EF was just 14% at that time. Gradually, it went up to nearly 30%. Now when checked last week, it just 15% only. I am on cardace 5 mg/ 2.5 mg, ecosprin 75, clopid 75, sotalar 40, (bds), digoxin 5 days a week. Can you suggest something to improve the EF.