Refers to when someone's heart stops working This means the person is dead and if there is any hope, rescuers will attempt CPR and ALS methods to restore life
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
—The sudden cessation of the heart's pumping action, possibly due to a heart attack, respiratory arrest, electrical shock, extreme cold, blood loss, drug overdose, or a severe allergic reaction
The absence of mechanical function of the heart (when the heart stops beating or beat so abnormally as to not effectively pump) This results in the loss of arterial blood pressure and irreversible brain damage and death if circulation of the blood is not restored within minutes
the complete cycle of events in the heart from the beginning of one heart beat to the beginning of the next; an electrical impulse in conducted through the heart muscle that constricts the atria which is followed by constriction of the ventricles; "the cardiac cycle can be shown on an electrocardiogram
Any of several glycosides obtained chiefly from plant sources such as the foxglove, used medicinally to increase the force of contraction of heart muscle and to regulate heartbeats
A resuscitative procedure that employs the rhythmic compression of the chest and heart in an effort to restore and maintain the circulation after cardiac arrest or ventricular fibrillation. Also called heart massage
an emergency procedure that employs rhythmic compression of the heart (either through the chest wall or, during surgery, directly to the heart) in an attempt to maintain circulation during cardiac arrest
electrical device which stimulates and regulates the heartbeat by delivering weak electrical pulses to the cardiac muscle at regular intervals (Cardiology)
mechanical compression of the heart resulting from large amounts of fluid collecting in the pericardial space and limiting the heart's normal range of motion