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How high does a heart rate have to go to become a heart attack?

I have epilepsy and last nite I went into an aura. I also have panic disorder and when medics got to my apartment my heart rate was 210.
Can I stress my heart into cardiac arrest? Also, it seems like the seizure aura is related to heart issues because as soon as the aura hits my rate goes out of control. My blood pressure also dropped to 90/60. Thanks.


  1. Cardiac arrest and heart attack are two different things. Heart attack, or myocardial infarction, is when blood supply to the heart is interrupted, which causes heart cells to die. Cardiac arrest is when the heart stops beating. What you’re talking about, a rapid heartbeat, is called tachycardia. If it persists long enough, it can cause a myocardial infarction due to low blood pressure. You need to just see your doctor about all this. You won’t find a definitive answer here.

  2. A sustained run of tachycardia, in some instances can turn into ventricular fibrillation. That’s why it’s treated pre-hospital by paramedics on the ambulance. Sounds like your lowered B/P was due to diminished cardiac output. Your heart was beating so fast, the chambers didn’t have time to refill and thus less blood was being pumped through your circulatory system.
    I would suspect that the only relation to your tachycardia and the aura’s is panic.


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