This chest tightness can change from day to day, and/or from moment to moment. All of the above combinations and variations are common. This type of chest tightness is commonly misconstrued as heart problems or the signs of a heart attack.
Cardiac arrest, also known as cardiopulmonary arrest or circulatory arrest, is a sudden stop in effective blood circulation due to the failure of the heart to contract effectively or at all. Medical personnel may refer to an unexpected cardiac arrest as a sudden cardiac arrest (SCA).
Cardiac arrest is the sudden loss of cardiac function, when the heart abruptly stops beating. Unless resuscitative efforts are begun immediately, cardiac arrest leads to death within a few minutes. This is often referred to by doctors as sudden death or sudden cardiac death (SCD).. Symptoms of sudden cardiac arrest include: 1  Loss of consciousness. 2  Lack of pulse. 3  No signs of breathing.