From : About.com:Heart Disease
Bill Clinton was hospitalized this afternoon after experiencing chest pains. Spokespersons for Columbia Presbyterian Hospital in New York City, where the 63-year-old former President Clinton was admitted, said he has received two stents in one of his coronary arteries. Mr. Clinton is known to have had coronary artery disease at least since 2004, when he had bypass surgery performed to four of his coronary arteries. At that time, it was noted that he did not have heart muscle damage. Whether he has sustained any permanent heart muscle damage with this latest episode has not been reported.
So what does this latest episode indicate? It is impossible to know for sure considering the sparse details released so far, but based on the symptom of chest pain, and his doctors’ very rapid insertion of stents as a result, it appears very likely that President Clinton has experienced a form of Acute Coronary Syndrome (ACS).