A heart attack is a life-threatening condition in which your heart muscle is deprived of oxygen. A heart attack, usually caused by a blood clot, causes serious damage to your heart muscle and its ability to function effectively.

Healthgrades is the leading online resource for helping consumers make informed healthcare choices regarding doctors and facilities. Each year, Healthgrades evaluates approximately 4,500 hospitals and healthcare systems on their performances on the most common inpatient procedures and conditions. Star ratings are an evaluation of the hospital’s actual performance as compared to the predicted performance for that hospital based on a specific risk-adjustment model applied to that hospital.