What are the effects of tachycardia

Tachycardia may cause decreased heart function, myocardial ischemia, difficulty breathing, dizziness, and syncope.

1. Decreased heart function

Chronic tachycardia may cause decreased heart function, and the heart cannot pump blood efficiently to various parts of the body, eventually causing heart

failure.2. Myocardial ischemia

Tachycardia may cause myocardial ischemia, and myocardial cells lack sufficient oxygen and nutrients to affect heart

function.3. Difficulty breathing

Tachycardia may cause difficulty breathing, especially during exercise or emotional

excitation.4. Dizziness and syncope

Tachycardia may cause dizziness and syncope, especially during sudden standing or exercise.