My husband has just been diagnosed with an enlarged heart he is very frightened that this is a death sentence can you live a long life if treated?

Absolutely: Enlargement of the heart can occur from a wide variety of causes. Most can be treated with current medications and interventions. Make sure you or your husband discuss this concern with your husband's cardiologist - i'm sure they will address these concerns and formulate a treatment plan to improve the health and longevity of your husband.

Depends: There are many causes of enlarged heart and many of those are treatable. Please consult this site for more information. It is important to follow the treatment and advice given by your doctor. I wish you and your husband the best. http://www.mayoclinic.com/health/enlarged-heart/ds01129.

Sure: It all depends on the cause. As a physician to elite athletes, almost every heart i examine is a big one. Actually, mine is too from my fitness activities. All untreated hypertensive and (in a recent autopsy series) all fat people have big hearts. I've noticed that bodybuilders who aren't real athletes have big ones as well. One more time in which "size isn't the real issue!" glad you asked.