The short answer from a preventive cardiologist

Q: I recently had a heart attack, but a cardiac catherization found no blocked arteries. Is this possible?

A: Yes, this type of heart attack is called a myocardial infarction in the absence of obstructive coronary artery disease, or MINOCA. It accounts for 5 to 6% of heart attacks.

Compared with other types of heart attacks, patients are usually younger and more likely to be female.

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Causes of MINOCA include:

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