What are the causes of cardiogenic syncope

summary

Climbing the stairs with my friend, my friend suddenly fainted. He seemed to have difficulty breathing. He was very flustered and didn't know what to do. With the help of others, he was sent to the hospital. After examination, he was confirmed to have cardiogenic syncope. Let's talk about the causes of cardiogenic syncope.

What are the causes of cardiogenic syncope

First, arrhythmia is the most common cause of cardiogenic syncope. When cardiac pacing or conduction disturbance reaches a certain degree, bradycardia (less than 30-35 / min or even cardiac arrest) or tachycardia (more than 150-180 / min) and ineffective contraction increase can reduce cardiac output and lead to syncope attack.

Second, the bradyarrhythmias that cause syncope mainly include bradycardia, sick sinus syndrome with or without tachyarrhythmia and high atrioventricular block. Although bradyarrhythmia can occur at all ages, it occurs most frequently in the elderly. Ischemia or fibrosis of the conduction system is a common cause.

Third: in tachyarrhythmia, heart rate, blood volume, body position, organic heart disease and integrity of peripheral vascular reflex are the determinants of syncope. Paroxysmal tachycardia can lead to presyncope state or syncope due to sudden decrease of cardiac output.

matters needing attention

It's really worrying that this situation suddenly appears around us. Fortunately, my friend's situation is very stable and there is no big problem. This also let us know the importance of prevention, we should understand the information about the disease, understand the disease, so as to prevent, fundamentally eliminate the occurrence of this disease.