Is sinus tachycardia dangerous?

Sinus tachycardia refers to sinus tachycardia, whether it is very dangerous, should be specific analysis:

if sinus tachycardia is caused by physiological reasons, and the condition is relatively mild, does not cause obvious symptoms, in addition to eliminating incentives, calm mood, general sinus tachycardia is not very dangerous. If sinus tachycardia is caused by acute myocardial infarction, heart failure, sepsis, shock and other reasons, and there are obvious symptoms such as dyspnea, dizziness, fainting, etc., it is considered that the condition is very dangerous, the cause may not be controlled, inducing other malignant arrhythmias.