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Pulseless electrical activity (PEA) is a form of cardiac arrest in which the electrocardiogram shows a heart rhythm that should produce a pulse, but does not.Pulseless electrical activity is found initially in about 20% of out-of-hospital cardiac arrests [1] and about 50% of in-hospital cardiac arrests.
The definitive electrical mechanisms of cardiac arrest, which may arise from any of the functional, structural, or physiologic abnormalities mentioned above, are characterized by arrhythmias. [29] Ventricular fibrillation and pulseless or sustained ventricular tachycardia are the most commonly recorded arrhythmias preceding cardiac arrest ...
Common cardiac arrest rhythms covered by ACLS guidelines include: ventricular tachycardia, ventricular fibrillation, Pulseless Electrical Activity, and asystole. Dangerous, non-arrest rhythms typically covered includes: narrow - and wide-complex tachycardias , torsades de pointe , atrial fibrillation / flutter with rapid ventricular response ...
Ventricular fibrillation (V-fib or VF) is an abnormal heart rhythm in which the ventricles of the heart quiver. [2] It is due to disorganized electrical activity. [2] Ventricular fibrillation results in cardiac arrest with loss of consciousness and no pulse. [1]
It can be medically risky to stun a child with an electrical weapon, especially if that child isn’t fully grown. The jolts of electricity puts them at greater risk for cardiac arrest, said Dr. Zian Tseng, a cardiologist and cardiac electrophysiologist at the University of California in San Francisco who has studied the impact of Tasers.
Asystole is the most serious form of cardiac arrest and is usually irreversible. Also referred to as cardiac flatline, asystole is the state of total cessation of electrical activity from the heart, which means no tissue contraction from the heart muscle and therefore no blood flow to the rest of the body.
A third way to classify ventricular tachycardia is on the basis of its symptoms: Pulseless VT is associated with no effective cardiac output, hence, no effective pulse, and is a cause of cardiac arrest (see also: pulseless electrical activity [PEA]).
An example EKG for pulseless electrical activity. In this rhythm, cardiac activity will be seen on electrocardiogram, but a pulse will not be felt on provider's exam. An EKG showing asystole, or "flat-lining." Patients will present following a traumatic event most often with pulseless electrical activity (PEA). Patients will exhibit low blood ...