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What Causes Rapid Heart Rate And Dizziness?

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Posted on Thu, 20 Jul 2017
Question: I am a 62 year old female. Today i had rapid heart beat followed with a feeling of breathlessness and slight dizziness for no apparent reason. I feel kin of tired now. Are these symptoms of a heart attack. I should mention that I am also suffering from some sinus issues. Thanks
doctor
Answered by Dr. Sagar Makode (19 minutes later)
Brief Answer:
It's likely an arrhythmia like atrial fibrillation or PSVT

Detailed Answer:
Hello,

This can be a cardiac arrhythmia like psvt or atrial fibrillation, in which heart rate suddenly goes up and also suddenly decreases. This is less likely to be a heart attack. These are usually, not life threatening.

Blood pressure falls during these episodes and one has dizziness, fainting, blackouts, sometimes syncope. Usually ecg is normal as it is usually done in between the episodes. ECG done during episodes will show abnormality however ecg should be done. So you will need 24 hour holter monitoring if ecg is normal. So visit nearby cardiologist for these investigation.

ln order to abort such episodes you should try to cough hard.

Till the time your evaluation is complete, you can ask your local doctor for tab Metoprolol XR 25 mg once a day, which will prevent such rapid increase I heart rate.

If none of the above is successful then last option is of electrophysiological studies which is invasive test which can diagnose the arrhythmias and treat the arrhythmia permanently in most of the cases.

Hope this helps you and get back if you have any doubts.


Above answer was peer-reviewed by : Dr. Arnab Banerjee
doctor
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Follow up: Dr. Sagar Makode (25 minutes later)
Thank you!
doctor
Answered by Dr. Sagar Makode (1 minute later)
Brief Answer:
You are welcome

Detailed Answer:
You are welcome...
All the best.

Note: For further queries related to coronary artery disease and prevention, click here.

Above answer was peer-reviewed by : Dr. Arnab Banerjee
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Answered by
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Dr. Sagar Makode

Cardiologist

Practicing since :2013

Answered : 1867 Questions

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What Causes Rapid Heart Rate And Dizziness?

Brief Answer: It's likely an arrhythmia like atrial fibrillation or PSVT Detailed Answer: Hello, This can be a cardiac arrhythmia like psvt or atrial fibrillation, in which heart rate suddenly goes up and also suddenly decreases. This is less likely to be a heart attack. These are usually, not life threatening. Blood pressure falls during these episodes and one has dizziness, fainting, blackouts, sometimes syncope. Usually ecg is normal as it is usually done in between the episodes. ECG done during episodes will show abnormality however ecg should be done. So you will need 24 hour holter monitoring if ecg is normal. So visit nearby cardiologist for these investigation. ln order to abort such episodes you should try to cough hard. Till the time your evaluation is complete, you can ask your local doctor for tab Metoprolol XR 25 mg once a day, which will prevent such rapid increase I heart rate. If none of the above is successful then last option is of electrophysiological studies which is invasive test which can diagnose the arrhythmias and treat the arrhythmia permanently in most of the cases. Hope this helps you and get back if you have any doubts.