A fast heartbeat can lead to sudden death.
Tachycardia leads to shorter ventricular filling time and ejection time, and when the heart rate reaches a certain level, the heart cannot pump blood effectively, resulting in ischemia of the brain and heart and other important organs, and heart and brain cells are extremely sensitive to ischemia and hypoxia, which can lead to cardiac arrest and ischemia and hypoxia necrosis of the brain cells in a short period of time, thus leading to sudden death.
Tachycardia has many causes, generally greater than 100 beats per minute is tachycardia, can be caused by strenuous exercise, drinking coffee, strong tea, staying up all night and other physiological factors, generally remove the cause of the heart rate will return to normal. Tachycardia caused by atrial fibrillation, ventricular flutter, and other tachyarrhythmias carries a serious risk of sudden death.
Therefore, patients with non-physiological tachycardia should go to the hospital in time, complete the examination, clarify the cause of the disease, and then under the guidance of the doctor to carry out regular treatment in a timely manner.