Why is atrial fibrillation dangerous?

Cva, mi: 1 - if the rate goes too fast...This can become a problem 2 - more commonly, when they beat so erratically, it gives an opportunity for the blood to clot in the atria, and then when that clot is pushed into the ventricles it can be pushed into the circulation where it may cause an mi or cva.

Causes strokes: Atrial fibrillation causes stagnation of blood in the atrium contributing to the formation of clots there which may travel to the brain causing a stroke or cva or sudden death.

Generally, It's Not: Afib isn't a fatal condition and while people who have it live shorter lives, most of that is because they also have other issues. It's problematic if the lower chamber (ventricles) are driven too fast (>130/min on ongoing basis, usually) which can result in impaired pumping function of the heart (rate related cardiomyopathy). Many people also have disabling symptoms from the fast/irreg heart rate.

It can be: It can lead to stroke unless you take anticoagulants.

It depends: Appropriate management can lower the risk. Specifically, the heart rate needs to be controlled and stroke risk needs to be addressed. Specific guidance should be available from your physician.

It can be : Increased stroke risk is the major consideration here. Talk to your cardiologist about what yours is & whether you should be on blood thinners or just Aspirin (for lower risk patients).