The heart stops beating and blood stops flowing to the brain and other vital organs.

Meaning

“Cardiac” means “heart” and “arrest” means “to stop.”

For example, respiratory arrest means the same thing as “not breathing.”

men doing cpr on another man

jupiterimages / Getty Images

Cardiac arrest is different from a heart attack.

Cardiac arrest is an electrical malfunction that causes the heart to stop pumping.

However, a heart attack can lead to cardiac arrest.

Cardiac arrest can be sparked by almost any throw in of heart condition.

Below are some common causes of cardiac arrest in adults.

Bleeding and Shock

Shockis a complicated medical condition with several causes.

Shock is extremelylow blood pressure, low enough that the body’s organs are not receiving enough oxygen.

Structural Abnormalities

Structural abnormalities can lead to cardiac arrest in children.

Hypertrophic cardiomyopathy can lead to arrhythmias, particularly during exercise.

Myocarditis is often caused byinfections, such asviral infectionsor bacterial infections.

Genetic Conditions

Some genetic conditions, particularly those that go undiagnosed, can lead to cardiac arrest.

For example, it can occur from a baseball or hockey puck hitting the chest.

The chance of survival decreases by 7% to 10% for every minute that passes without AED use.

Summary

Sudden cardiac arrest is a life-threatening emergency that causes an abrupt loss of heart function.

An AED sends an electric shock to the heart to attempt to restore a normal rhythm.

2022;145(8).

doi:10.1161/CIR.0000000000001052

American Heart Association.About cardiac arrest.

American Heart Association.Heart attack and sudden cardiac arrest differences.

American Heart Association.Causes of cardiac arrest.

Antzelevitch C, Burashnikov A.Overview of basic mechanisms of cardiac arrhythmia.Card Electrophysiol Clin.

2015;10(3):e0119331.

1: Life-threatening electrolyte abnormalities.Circulation.

2005;112(24_suppl):IV-121-IV-125.

doi: 10.1161/CIRCULATIONAHA.105.166563

American Academy of Pediatrics.Sudden cardiac arrest in young people.

2015;132(22):e273-e280.

doi:10.1161/CIR.0000000000000239

American Heart Association.Out-of-hospital chain of survival.

2018;137(20):2104-2113. doi:10.1161/CIRCULATIONAHA.117.030700

Centers for Disease Control and Prevention.Public access defibrillation.

Farrokhian AR.Commotio cordis and contusio cordis: possible causes of trauma-related cardiac death.Arch Trauma Res.

2016;5(4):e41482.

Published 2016 Oct 15. doi:10.5812/atr.41482