8354cbfd_diac_Arrest_and_a_Heart_Attack__Sudden_Cardiac_Arrest__SCA_
[0] Causes [Heart Attack] Plaque made of cholesterol and other cells builds up in the walls of the heart’s arteries. When the buildup is great enough, the plaque creates a blockage, known as an occlusion, which restricts the blood supply to the heart muscle. [Sudden Cardiac Arrest (SCA)] 
Electrical impulses of the heart become chaotic due to a blow to the chest or other (sometimes-unknown) health-related issues. As a result, the heart stops beating regularly and begins to flutter rapidly.
The Difference Between Sudden Cardiac Arrest and a Heart Attack
Sudden Cardiac Arrest (SCA)