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Doctor insights on: Ventricular Fibrillation

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Dr. Michael Zevitz
568 doctors shared insights

Ventricular Fibrillation (Overview)

Ventricular fibrillation is a condition where there is an uncoordinated electrical stimulation to the ventricles of the heart, causing the muscles to contract individually rather than together as a group response. The heart is unable to pump blood in this condition.


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What kind of ventricular fibrillation is not dangerous?

What kind of ventricular fibrillation is not dangerous?

Ventricular fibrilla: Ventricular fibrillation means the heart is not mechanically contracting and thus isn't pumping blood. There is no kind of ventricular fibrillation that isn't life threatening unless it is the kind which is pseudovfib meaning it isn't really fibrillating, it just looks that way on the ecg. ...Read more

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Dr. Michael Zevitz
568 doctors shared insights

Ventricular Fibrillation (Overview)

Ventricular fibrillation is a condition where there is an uncoordinated electrical stimulation to the ventricles of the heart, causing the muscles to contract individually rather than together as a group response. The heart is unable to pump blood in this condition.


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How long does ventricular fibrillation last?

How long does ventricular fibrillation last?

Ventricular or Atria: Fibrillation is a random chaiotic electrical pattern. Atrial fibrillation is common an some older adults live in continuous a-fib and feel ok while on medications that slow the ventricular response to the atrial rate. Ventricular fibrillation is not tolerated, meaning someone having true ventricular fibrillation will loose consciousness in seconds. True vf is life threatening in seconds. ...Read more

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What are the symptoms of ventricular fibrillation?

What are the symptoms of ventricular fibrillation?

Cardiac arrest: Ventricular fibrillation is a fatal arrhythmia that results in death unless reversed with defibrillation. The main symptoms are cardiovascular collapse with absence of blood pressure, pulselessness, and total unresponsiveness to any stimuli. ...Read more

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What are the tests for ventricular fibrillation?

What are the tests for ventricular fibrillation?

Immediate ECG: Ventricular fibrillation is a potentially fatal heart arrhythmia which if not reversed back to a normal rhythm, can cause permanent stoppage of the heart. It always causes patients to lose conciousness and cause cardiovascular collapse. These patients need to have immediate confirmation of their rhythm disturbance and be defibrillated immediately to prevent death. ...Read more

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Does atrial fibrillation with rapid ventricular response cause ventricular fibrillation?

Only in a Very Few: Generally, the answer to this is a very solid "no." this is a rare complication of people with another condition (on top of their afib) called wolff-parkinson-white syndrome (or wpw). In certain patients having both conditions, the top chamber is too-well connected to the bottom and can trigger ventricular fibrillation. ...Read more

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How do class 1b antiarrhythmic drugs help in treating ventricular fibrillation?

How do class 1b antiarrhythmic drugs help in treating ventricular fibrillation?

Sodium Channels: Sodium channels are responsible for the action potential, the depolarization of the heart. These drugs decrease the excitability of the heart because they interfere with the sodium channels. So it will help against ventricular fibrillation. ...Read more

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How do antiarrythmic drugs help in the treatment of ventricular fibrillation?

How do antiarrythmic drugs help in the treatment of ventricular fibrillation?

Channel Poisons.: All antiarrhythmic medications are targeted at the channels that allow sodium, potassium, and calcium into and out of cardiac muscles, myocytes. They target certain channels at a cellular level to slow or break the abnormal rhythm. They often do nothing to fix or correct the problem. ...Read more

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How long does ventricular fibrillation usually last without treatment?

Until out of energy: Ventricular fibrillation is a lethal heart arrhythmia which results in no notable blood flow to all the organs. If it does not resolve quickly, either spontaneously, or with defibrillation (shocking), organ damage starts after just a few minutes. If not converted, the rhythm will continue for several minutes until the heart is out of cellular energy, . ...Read more

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Fibrillation (Definition)

Fibrillation is the rapid, irregular, and unsynchronized contraction of muscle fibers. An important occurrence is with ...Read more