How to effectively manage inappropriate sinus tachycardia?

Question

Hello doctor,

For the past six months, I have been experiencing rapid heart rates. When I walk, my heart rate increases to 130 to 150 beats per minute. I do not have any symptoms—no dizziness, shortness of breath, or fatigue. Even sneezing can cause my heart rate to reach 150 beats per minute. I am unaware of it until I check my pulse or place my hand on my chest and feel that my heart is racing. I have had three EKGs and three echocardiograms performed by different doctors, all of which were normal. At rest, my heart rate ranges from 60 to 90 beats per minute. I am taking 10 to 20 mg of Propranolol daily. If I miss a dose, my heart rate increases, even when I am resting. I led a very sedentary lifestyle over the past year, which is now changing, but my heart rate remains the same. Is this something to be concerned about?

Please help.

Answer 1

Hello,

Welcome to icliniq.com.

It appears that you may be suffering from a condition known as inappropriate sinus tachycardia. However, an ECG (electrocardiogram) taken during episodes of palpitations is necessary to confirm this. I also recommend a thyroid function test to rule out any thyroid disease. Regular daily exercise can be beneficial, as it may help regulate your heart rate. Additionally, continue taking Propranolol, as persistent tachycardia can weaken the heart's pumping function over time.

Thanks and regards.