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What causes chest pain with postural tachycardia syndrome?

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Posted on Mon, 21 Jul 2014
Question: Hi, I am sorry this was intended as a new question. I experience occasional POTS upon rising, usually when slightly dehydrated. The last episode I experienced I had quite sever chest pain that resolved itself immediately after sitting down. (I.E. I woke up to use the restroom from sleep, and then experienced this pain). I have normal arteries and normal heart (had ECG and EKG Stress Test) and have no problem exercising or chest pain during exertion.

I read that chest pain caused by POTS is not perfectly understood but that it is almost never caused as a result of Ischemia but rather is caused by "inferior lead electrocardiographic changes". So what does this mean?
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Answered by Dr. Chakravarthy Mazumdar (43 hours later)
Brief Answer:
Would like to know the excerpt of this statement

Detailed Answer:
Hi,

I understand that you are trying to relate the recent chest pain with the POTS. You are trying to understand the pathophysiology of the chest pain because of POTS.

As it said chest pain due to POTS is not because of ischemia (lack of blood and oxygen supply to the part of the heart muscle). I believe so. You were writing about ECG changes (inferior lead electrocardiographic changes) which are 'result' of certain pathological process leading to chest pain. Whether it is ischemia or hypovolemia should be understood. I think the later is more apt, the amount of blood flowing through the arteries to the heart reduces leading to the pain.

I wish to know where did you read this statement and if you can send me the link of it. As I understand we sometimes find Inferior lead changes in a person with POTS. The reasons are not completely known.
Above answer was peer-reviewed by : Dr. Aparna Kohli
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Answered by
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Dr. Chakravarthy Mazumdar

General & Family Physician

Practicing since :2004

Answered : 1779 Questions

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What causes chest pain with postural tachycardia syndrome?

Brief Answer: Would like to know the excerpt of this statement Detailed Answer: Hi, I understand that you are trying to relate the recent chest pain with the POTS. You are trying to understand the pathophysiology of the chest pain because of POTS. As it said chest pain due to POTS is not because of ischemia (lack of blood and oxygen supply to the part of the heart muscle). I believe so. You were writing about ECG changes (inferior lead electrocardiographic changes) which are 'result' of certain pathological process leading to chest pain. Whether it is ischemia or hypovolemia should be understood. I think the later is more apt, the amount of blood flowing through the arteries to the heart reduces leading to the pain. I wish to know where did you read this statement and if you can send me the link of it. As I understand we sometimes find Inferior lead changes in a person with POTS. The reasons are not completely known.