Cardiac arrest and Heart arrest

Cardiac arrest noun - Absence of systole; failure of the ventricles of the heart to contract (usually caused by ventricular fibrillation) with consequent absence of the heart beat leading to oxygen lack and eventually to death.

Heart arrest and cardiac arrest are semantically related. in heart attack topic. In some cases you can use "Heart arrest" instead a noun phrase "Cardiac arrest".

Cardiac arrest and heart arrest are semantically related. Sometimes you can replace phrase "Cardiac arrest" with "Heart arrest", this phrases are similar.