Peter Attia· MD
Whereas there was another version of heart attack at that time that we called non Q wave heart attack. And those people presented with the same clinical, So they had chest pain. They also had positive biomarkers. At that time, we were measuring CK or creatine kinase, and that's an enzyme that's leaked out of the cytosol of a muscle cell when there's damage to it. And so people have heart attacks. There are a bunch of these enzymes, myoglobin and others that go up. and that's one of the ways that we define heart attacks. So people would come in, they'd have a positive biomarker, they'd have chest pain, but they didn't have this Q wave, and so they were called non-Q wave myocardial infarctions.