Matters of the Heart: What is Sudden Cardiac Arrest and How Do AEDs Save Lives?
What is Sudden Cardiac Arrest (SCA)?
Sudden cardiac arrest (SCA) is the leading cause of death in young athletes. It occurs suddenly and without warning when the heart abruptly stops. Blood ceases to ﬂow to the brain and other vital organs, causing immediate loss of consciousness or seizure-like activity. If not treated within the ﬁrst few minutes, SCA results in death.