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A new study led by Stanford Medicine researchers highlights a dramatic shift in the landscape of heart disease mortality in the United States. While deaths from heart attacks have plummeted nearly 90% since 1970, more Americans are now succumbing to other chronic heart conditions such as heart failure, hypertensive heart disease, and arrhythmias.
In 1970, a person over 65 hospitalized for a heart attack had only a 60% chance of surviving. Today, that survival rate has soared to over 90%, with even better outcomes for younger patients. This improvement is credited to advances in medical technology, public health campaigns against smoking, and the widespread use of life-saving interventions like bystander CPR, stents, and cholesterol-lowering medications.
The study, published in the Journal of the American Heart Association, analyzed data from 119 million adult deaths between 1970 and 2022. In 1970, heart disease accounted for 41% of all deaths in the U.S.; by 2022, that figure had dropped to 24%. The most notable progress was seen in deaths from acute myocardial infarctions (heart attacks), which fell by nearly 90% over the five-decade span.
However, this success comes with a new challenge. As more people survive heart attacks, they are living long enough to develop other, often chronic, heart conditions. Today, roughly half of all heart disease deaths are due to non-ischemic causes—conditions not related to blocked arteries. These include heart failure, hypertensive heart disease, arrhythmias, and heart disease related to lung conditions.
The rise in chronic heart disease deaths is partly attributed to an aging population and increasing rates of obesity, diabetes, hypertension, and physical inactivity. Currently, about 50% of adults in the U.S. have diabetes or pre-diabetes, and 40% are classified as obese. Life expectancy has also increased, giving people more years to develop chronic illnesses.
Researchers caution that these national trends may mask significant differences among subgroups, with factors such as sex, race, and socioeconomic status influencing both risk and access to care. They emphasize the need for tailored interventions to address these disparities.
Despite the progress, heart disease remains the leading cause of death in the United States. The study’s authors stress that continued innovation and targeted public health efforts are essential to further reduce mortality from all forms of heart disease1.
“Thanks to sustained public investment, we’ve seen a remarkable 90% decline in heart attack deaths, a medical miracle made possible by the synergistic power of science, medicine and public health,” said Dr. Latha Palaniappan, senior author of the study.
Disclaimer:
This article is based on information from a study published in the Journal of the American Heart Association and republished by Technology Networks. The content has been summarized and edited for clarity. For more detailed information, consult the original study and source materials.
