Before a cardiac arrest, men and women have different symptoms, study finds

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Of the more than 356,000 cardiac arrests in the United States each year, 90% are fatal.

While there are some known signs of sudden cardiac arrest, it usually occurs without warning.

Researchers from the Smidt Heart Institute at Cedars-Sinai Health System have found that half of people experiencing a sudden cardiac arrest also had a telling symptom 24 hours beforehand.

Scientists also discovered those warning symptoms are different between men and women.

The scientists also found differences in the sudden cardiac arrest warning symptoms between men and women.

Researchers found that the most prominent symptom for women 24 hours before cardiac arrest was shortness of breath. For men, chest pain was the preeminent telltale symptom.

More than 356,000 out-of-hospital cardiac arrests occur in the United States each year. Of that number, about 90% cause a fatality.

Although there are some known signs and symptoms of cardiac arrest — also known as sudden cardiac arrest — most times it occurs without warning.

Now, researchers from the Smidt Heart Institute at Cedars-Sinai Health System have found that half of the people experiencing a sudden cardiac arrest also had a telling symptom 24 hours beforehand.