All the info provided so far has been great, so I have nothing to add. I do though have some questions....

What is your husbands family history? Is his dad still alive? Anyone in his family have problems with heart or possible stroke? Does he have brothers? Sisters? Does he smoke?

The reason I ask, is because my father past away at 34 (40 yrs ago) of a heart attack. When they did the autopsy, they found his arteries were packed with cholesterol. He was had an athletic build, but he smoked and his father died at age 40 of a stroke. So my questions are purely curiosity.

Take care and I hope your husband continues to do well.