What are the consequences of tachycardia?

Tachycardia may lead to myocardial ischemia, angina pectoris, heart failure and other consequences.

1, myocardial ischemia

tachycardia refers to the resting state heart rate of more than 100 beats/min, will lead to shortening of the cardiac cycle, so that the relative shortening of the diastolic period, resulting in insufficient blood supply to the heart, myocardial ischemia.

2, angina pectoris

in normal state, myocardial oxygen consumption and blood supply in balance. When tachycardia occurs, it will break this balance, resulting in myocardial oxygen consumption exceeds its own blood supply, myocardial cells appear ischemia, hypoxia, and finally induce angina pectoris.

3, heart failure

If long-term tachycardia occurs, it may lead to cardiac remodeling, ventricular become larger and larger, and eventually induce heart failure.