How does thyroid cancer cause rapid heartbeat?

Thyroid cancer is a malignant tumor that originates from the thyroid follicular epithelium or parafollicular cells. There are many reasons for tachycardia, the most common of which are excessive secretion of thyroid hormones, thyroid-related diseases, radiation damage, and combined with other diseases.

1. Excessive secretion of thyroid hormones: If the patient has excessive secretion of thyroid hormones, the body may be in a high metabolic state, resulting in rapid heartbeat, and may also be accompanied by symptoms such as weight loss and increased appetite. Patients can use drugs such as propylthiouracil tablets under the guidance of a doctor to inhibit the synthesis and secretion of thyroid hormones;

2. Thyroid-related diseases: If the patient has hyperthyroidism, the body will be in a high metabolic state, resulting in a rapid heartbeat, accompanied by symptoms such as palpitations and fatigue. Patients can use methimazole tablets, carbimazole tablets and other drugs for treatment under the guidance of a doctor. If necessary, subtotal or total thyroidectomy can be used for surgical treatment;

3. Radiation damage: If the patient undergoes radiation therapy after thyroid cancer surgery, it may damage the thyroid gland and cause hypothyroidism. The body will be in a high metabolic state, which will lead to rapid heartbeat, accompanied by symptoms such as fatigue and myxedema. Patients can use drugs such as levothyroxine sodium tablets for treatment under the guidance of a doctor;

4. Combination with other diseases: If the patient has coronary heart disease, myocarditis and other diseases, myocardial ischemia and hypoxia will cause sympathetic nerve excitement, resulting in tachycardia, accompanied by chest tightness, chest pain and other symptoms. Patients can use enteric-coated aspirin tablets, metoprolol tartrate tablets and other drugs for treatment under the guidance of a doctor.

In addition, if the patient has concurrent diseases such as arrhythmia, heart failure, etc., the heart rate may also be too fast. It is recommended that the patient go to the endocrinology department of the hospital in time for a complete blood routine test, cardiac color ultrasound examination, etc. to make a clear diagnosis.