Atrioventricular block (AV block) is a conduction disorder from the atria to the ventricles that causes arrhythmias of many causes. Depending on the block level, there are different dangerous properties.

Atrioventricular block is a condition in which the system that conducts electrical impulses in the heart from the atria to the ventricles is disrupted. Atrioventricular block is classified into 3 different grades, of which first-degree AV block is the mildest. So is 1st degree atrioventricular block dangerous?

Atrioventricular block is a partial or complete obstruction of the conduction of electrical impulses from the atria to the ventricles due to anatomical or functional impairment. If the disease is not detected and treated early, it will progress to higher stages, causing arrhythmias and various dangerous complications.