The symptoms of hyperthyroid heart disease are as follows:

Nowadays, more and more people are paying close attention to heart disease. Some patients have heart attacks, which are related to hyperthyroidism. So, what are the symptoms of hyperthyroid heart disease?

1. Hyperthyroidism and arrhythmia

The most common arrhythmias in hyperthyroidism include sinus tachycardia, premature atrial contractions, paroxysmal tachycardia, ventricular flutter, and atrial fibrillation, among which atrial fibrillation is the most common.

2. Hyperthyroidism and heart enlargement

Long-term untreated hyperthyroidism can cause prominent changes in heart shape, including atrial or ventricular enlargement, increased heart weight, myocardial cell hypertrophy, and widening of the myocardial fiber spaces. These changes can be improved or reversed after thyroid function returns to normal.

3. Hyperthyroidism and heart failure

According to reports, the incidence of congestive heart failure in patients with hyperthyroidism is about 6%, and it is more likely to occur in patients over 60 years old and with a long course of disease. The occurrence of heart failure is related to the following factors: ① The high dynamic circulation state in hyperthyroidism causes long-term overload of the myocardium, which can cause heart enlargement and increased cardiac output; ② Increased myocardial oxygen consumption and energy metabolism disorders; ③ Rapid arrhythmias, especially atrial fibrillation, which cause decreased cardiac output; ④ RAAS activation can lead to myocardial hypertrophy and increased blood volume. The characteristics of heart failure are that right heart failure is more common, but left heart failure can also occur.

4. Angina and myocardial infarction

Hyperthyroid heart disease rarely causes angina pectoris, which is mostly due to relative insufficiency of coronary blood supply, with a common feeling of heaviness in the chest or chest. Myocardial infarction is rare and is related to coronary spasm, microcirculation disorders and abnormal blood rheology.