1859, action of barring; man-made barrier in a stream, from French barrer to stop, from barre bar, from Old French barre (see bar (n.1)). Artillery sense is 1916, from World War I French phrase tir de barrage barrier fire intended to isolate the objective. As a verb by 1917.
What happens in cardiac arrest. 1  Once the usual blood circulation stops, oxygen delivery to all vital organs is also stopped. 2  The pulse that is usually seen in the carotid artery in the neck as well in the wrists and ankles is lacking. 3  Cardiac arrest may lead to sudden cardiac death or SCD.
These two distinct heart conditions are linked. Sudden cardiac arrest can occur after a heart attack, or during recovery. Heart attacks increase the risk for sudden cardiac arrest. Most heart attacks do not lead to sudden cardiac arrest. But when sudden cardiac arrest occurs, heart attack is a common cause. Other heart conditions may also disrupt the heartâs rhythm and lead to sudden cardiac arrest.