Q. I had tachycardia after a heavy period. Why?

Answered by Dr. Muhammad M. Hanif Md. and medically reviewed by iCliniq medical review team.


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Hello doctor,

Last month, I did a health check-up and everything was fine. Later, I had my cycle a little heavy compared to my regular one. I felt quite weak. I went for an ECG in a local diagnostic center. It showed tachycardia and an early transition posterior infarct. I am very prone to anxiety. Please tell me what to do as I am going crazy.

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Dr. Muhammad M. Hanif Md.
Cardiology, Critical Care Physician, General Medicine, Internal Medicine


Welcome to icliniq.com.

From the limited details on this case that I have, it seems you are worried about the finding on the EKG (electrocardiogram) as early transition infarct of the posterior wall.

  • As you had a recent heavy menstrual bleed and you were feeling sick, that is why you got a racing heart reply (tachycardia) in the EKG reports.
  • When there is less than normal blood in our body, obviously less blood is circulated through the lungs and less oxygen is mixed into the blood what we have. Our body needs the same amount of oxygen it used to have before the blood volume declined. To fulfill the need, the heart jumps in to help the lungs in fulfilling our body's oxygen needs. The heart starts racing and pumping more than normal times a minute. This is called tachycardia that is caught on your EKG. Our body refuels the lost blood in a couple of weeks to a month. And this temporary compensation mechanism of the heart's over-pumping calms down to normal. You do not have to do anything. It is all automatic and is being regulated through mechanisms running naturally in our body.
  • Regarding the posterior infarct, it means there may be something wrong with the blood vessels supplying your heart. We cannot say for sure what it can be and how serious it is without probing and evaluating further. In case our heart gets less than needed blood supply for its muscles to work properly, it gets this kind of findings as you got on the EKG. But, this is not something we can say is very dangerous. It can be just nothing to a serious issue. You need to get evaluated by a cardiologist. He would be able to probe further to get a clear answer about what is going on in there. He would also see if there is anemia (less than normal blood and blood components). Do not panic and consult a cardiologist as soon as possible.

Hope this helps. Please feel free to ask me if you need further assistance. I would be happy to help.

For more information consult a cardiologist online --> https://icliniq.com./ask-a-doctor-online/cardiologist

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