Sorry to hear of your husband's problem.
The generally accepted protocol for a drug eluding stent is plavix for a year or more with aspirin. Aspirin should be continued indefinitely.
There appears to be some problems with some individuals regarding restenosis with the DES. What is the underlying cause for the CHF? I assume it was ischemia (lack of blood flow) to heart cells, and that could be new blockages or partial blockages at the time of first event and has increased the blockage, arrhythmia, etc. Or there could be restenosis of the stent implants.
Is your husband's LDL cholesterol well controlled, and was he exercising regularly? Is he diabetic? Heart disease is caused by several factors.
I have had one stent after another (8) while taking Plavix. Now that my cholesterol levels are excellent there seems to be improvement. Keep in mind, Plavix and aspirin thin the blood, but doesn't control cholesterol levels. I'm about to be taken off Plavix, and yes, I'm a bit nervous about it. Hope your husband's condition improves, keep us informed.
His EF was around 45% after the second heart attack and is now down to 30% with all the problems with CHF. He has had two heart caths since the second heart attack and all is clear. His LDL cholesterol is well controlled and he has been exercising. The EKG shows bundle branch damaage. Thanks for your input.