Considering that Pol Pot was about 73 and had a history of ill health -- in recent years, he suffered a minor stroke and had cardiac problems -- a heart failure is perfectly feasible.

CNN: BEYOND POL POT

Initially, Medtronic and Genzyme will work to complete an ongoing 300-patient trial in Europe testing whether injecting skeletal myoblasts into damaged areas of the heart during cardiac bypass surgery helps improve symptoms and reduces hospitalizations in heart failure patients.

FORBES: Using Thigh Muscle To Fix The Heart

Even after its regulatory problems, the company is a leader in the field of implantable cardiac defibrillators, devices that are implanted in heart-failure patients.

FORBES: Hard Bargain Could Bite J&J Back

It was the latest high-profile case of a football player collapsing from heart failure on the pitch, coming less than a month after Bolton midfielder Fabrice Muamba suffered cardiac arrest during a game in England.

WSJ: Italian Soccer Player Dies