The life and political legacy of former Vice President Dick Cheney, who died on Nov. 4, 2025, at the age of 84, has been well documented. But his decades-long battle with heart disease may be less appreciated.

Cheney benefited from almost every major advance made in cardiovascular medicine. These breakthroughs enabled him to sustain an active political career and gave him additional years of an enjoyable life after he moved away from the political spotlight.

As a cardiologist who specializes in both sports medicine and heart disease, as well as advanced heart failure and transplant cardiology, I frequently provide care for patients who, like Cheney, are supported by powerful medicines and procedures to help support heart function.

Cheney’s passing provides an opportunity to reflect on the rapid evolution in medical technology, especially in the past half-century, that improved the lifespan and overall quality of life for Cheney, as well as millions of heart patients around the world.

Cheney suffered his first of five heart attacks at age 37, in 1978, when the standard of care mainly involved pain relief and bed rest, and when medical professionals did not yet have a clear understanding of what causes heart attacks in the first place.

Today, doctors understand that a heart attack occurs when blood flow through an artery is blocked by a blood clot called a thrombus and oxygen cannot get to the heart muscle. Imagine a kink in a hose that prevents water passing through it. When the heart muscle does not receive oxygen for a long enough period of time, the heart muscle will die and a scar will form.

In the 1960s and ’70s, however, doctors thought a thrombus was the result of – not the cause of – a heart attack.

It is now clear that the formation of a thrombus leads to a heart attack rather than the other way around. That important lesson revolutionized the way doctors like me treat patients with heart attacks.

Today, we reopen arteries with........

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