What does refractory VF mean?
Refractory VF is ventricular fibrillation that is thought to be “shock resistant” to standard cardioversion, due to ongoing myocardial ischemia fostering ongoing electrical instability. • This is the concept of cardiac “Electrical Storm”, where the myocardium is extremely resistant to stabilization.
Why is VF a shockable rhythm?
Shockable rhythms are rhythms that are caused by an aberration in the electrical conduction system of the heart….
| CAUSES | TREATMENT |
|---|---|
| Tension pneumothorax | needle decompression with eventual chest tube |
| Thrombosis (myocardial infarction or pulmonary embolus) | treat per cause |
What is refractory shockable rhythm?
Refractory shockable rhythm was defined as those that did not achieve return of spontaneous circulation (ROSC) after 3 cycles of defibrillation and 10 minutes of CPR.
What is normal VF?
When fibrillation occurs in the heart’s lower chambers (the ventricles), it is called ventricular fibrillation (VF). VF causes the heart to beat more than 200- 300 times per minute, rather than the normal rate of 60-100 beats per minute.
What can you do for refractory ventricular fibrillation?
Commonly used treatments for patients with OHCA combine cardiopulmonary resuscitation (CPR) and early defibrillation by bystanders, with advanced cardiac life support by emergency medical services providers that includes CPR, defibrillation, and intravenous (IV) drugs, and post-resuscitation care in hospital.
What are the shockable rhythms?
The two shockable rhythms are ventricular fibrillation (VF) and pulseless ventricular tachycardia (VT) while the non–shockable rhythms include sinus rhythm (SR), supraventricular tachycardia (SVT), premature ventricualr contraction (PVC), atrial fibrilation (AF) and so on.
When do you shock ACLS?
If the patient shows signs of return of spontaneous circulation, or ROSC, administer post-cardiac care. If a nonshockable rhythm is present and there is no pulse, continue with CPR and move to the algorithm for asystole or PEA. Yes – Shock.
Do you shock VF?
Ventricular fibrillation is an emergency that requires immediate medical attention. It’s the most frequent cause of sudden cardiac death. Emergency treatment for ventricular fibrillation includes cardiopulmonary resuscitation (CPR) and shocks to the heart with a device called an automated external defibrillator (AED).
What is refractory VT?
Refractory ventricular tachycardia, also known as “electrical storm,” is defined as at least two or more separate ventricular tachycardia (VT) or fibrillation (VF) episodes requiring intervention in a 24-hour period (1, 2, 3).
Is VF a shockable rhythm?
What happen in VF?
Ventricular fibrillation (V-fib or VF) is an abnormal heart rhythm in which the ventricles of the heart quiver instead of pumping normally. It is due to disorganized electrical activity. Ventricular fibrillation results in cardiac arrest with loss of consciousness and no pulse.
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