
How is sinus tachycardia treated?
I've been experiencing chest tightness and palpitations for the past two days. The doctor said I have sinus tachycardia. How is sinus tachycardia treated?

The treatment strategy for sinus tachycardia primarily depends on its cause and the patient's symptoms. If it is triggered by physiological factors such as anxiety, exercise, fever, or pain, the heart rate usually returns to normal spontaneously once these triggers are removed.
Patients who are asymptomatic or have only mild symptoms may not require pharmacological treatment. For patients with severe symptoms or sinus tachycardia caused by underlying cardiac diseases, treatment should target the primary condition, such as managing heart failure, replenishing blood volume, or controlling hyperthyroidism.
Commonly used medications include beta-blockers, such as metoprolol tartrate tablets, which can slow the heart rate. Another class of drugs, such as ivabradine hydrochloride tablets, can act directly on the sinoatrial node to reduce its firing rate, thus controlling the heart rate. Patients with frequent episodes that significantly impair quality of life may need to consider more advanced treatment options, such as radiofrequency ablation.
In addition, lifestyle modifications are also important, including avoiding staying up late, maintaining appropriate physical activity, and avoiding intake of high-caffeine foods and beverages, such as strong tea and coffee.