1.   Another theory is he was suffering from a rare viral infection which enlarges the heart, and can lead to sudden heart failure.

2.   All of the several hundreds of test mice examined at one to six months of age had enlarged hearts, said Lee.

3.   Most athletes have enlarged hearts because the heart is a muscle and grows with exercise.

4.   Nothing deep down to call upon, to quicken the pulse and enlarge the heart -- all the things it takes to pull you to the top.

5.   She was developing pulmonary hypertension and her heart was becoming enlarged.

6.   The doctors found her heart was enlarged.

7.   Physicians discovered her heart was enlarged and was struggling to keep beating.

8.   An immune deficiency left him vulnerable to a virus that attacked his system and enlarged his heart, according to his mother, Veronica.

9.   In addition, the heart was enlarged from high blood pressure, the autopsy said.