People with a certain heart valve abnormality are at increased risk of severe heart rhythm disorders, even after successful valve surgery.

SANTA FE, N.M. — Gene Hackman died due to ... of fever, muscle aches, cough, sometimes vomiting and diarrhea that can progress to shortness of breath and cardiac or heart failure and lung ...

Numerous motor and structural proteins compose a highly ordered structure known as the sarcomere, the basic unit of muscle contraction in heart and skeletal muscles. Sarcomeric myosin heavy chain ...