In 2004, Clinton underwent quadruple bypass surgery to unblock four arteries, some of which were almost 100% blocked, and has been monitored by some of the best doctors in the country ever since.
News reports indicate that Clinton, 63, complained of pain and breathing problems on Thursday and was admitted to New York Presbyterian Hospital. Clinton had two stents inserted into his heart valves.
Stents are small wire mesh tubes inserted into heart arteries to unblock them and allow blood to flow freely. His wife, Hillary Clinton, was in route to New York from Washington D.C. to be by her husband.
A press release issued by the hospital said:
"Mr. Clinton is in good spirits and will continue to focus on the work of his foundation and Haiti's relief and long-term recovery efforts"._