Is sinus tachycardia serious? What are the symptoms and treatment?

Expert answer:

Sinus Tachycardia is a situation that occurs in simple situations such as after exercise, fever, caffeine intake or after some excessive worry, but may come along with other most worrying situations such as myocardial infarction, pulmonary embolism, hypotension, sepsis, etc.

What can cause tachycardia?

Most of the time the tachycardia not noticeable by the person, but can be felt as a heart acceleration and the perception of the strongest beats. In some cases, tachycardia may be accompanied by dizziness, chest pain, fainting and difficulty breathing.

People who already have a heart problem may have different symptoms and in this case tachycardia may be a risk because the heart muscle will consume more oxygen, blood flow to the arteries will decrease, and heart failure may be aggravated.

In situations of physiological tachycardia and those caused by momentary situations, there is no need for treatment. In tachycardia caused by other diseases, the basic treatment of the disease itself or emergency treatment, such as in the infarct, will be sufficient to return to the habitual heart rhythm. In some situations the doctor may prescribe medicine to reduce heart rate, control anxiety, use an external pacemaker or even a defibrillator. Surgeries of ablation (to destroy cells that produce abnormal electrical signals) are less frequent, but associated with certain pathologies, may be necessary.

If the tachycardia is accompanied by chest pain, shortness of breath, difficulty breathing, seek emergency help.