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Ventricular fibrillation (V fib, VF) is a fatal dysrhythmia that occurs as a result of multiple weak ectopic foci in the ventricles. In other words, there is NO coordinated atrial or ventricular contraction and NO palpable pulse.
Ventricular tachycardia (VT or V tach) have three or more PVCs with a rate of >100
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What is the difference between arrhythmia and atrial fibrillation (AFib)?
Arrhythmia is a general term for any irregular heartbeat, while atrial fibrillation (AFib) is a specific type of arrhythmia where the heart's upper chambers beat irregularly and too fast.
What is the difference between Left Ventricular Hypertrophy and Left Ventricular Dysfunction?
LVH (Left Ventricular Hypertrophy) is (anatomical) structural condition and status of the heart, while Left Ventricular Dysfunction is disturbance in physiological functions and status of heart.
What is the difference between PVCs and AFib?
Premature ventricular contractions (PVCs) are extra heartbeats that originate in the ventricles, while atrial fibrillation (AFib) is an irregular and often rapid heart rhythm that originates in the atria. PVCs are usually harmless, while AFib can increase the risk of stroke and other complications.
What is heart Fibrillation?
Atrial fibrillation is where the electrical impulses within the atria become very rapid and irregular. Atrial rates are usally between 300- 400 BPM or more. How it can happen: 1) Electric shock 2) ion imbalance within heart cells 3) Re- entry pathway. For more information please contactHeartquestionsanswerd@hotmail.co.uk We will answer your question for FREE however use this information as a guide ONLY. I am NOT a doctor but I have been studying the heart for many years and the information here is up=to date.Fibrillation is a medical term and refers to the quivering of a muscle, usually in the heart, as opposed to it contracting properly. Due to uncoordination of the muscle fibrils. Common terms heard are atrial and ventricular fibrillation, the first meaning that the atria of the heart (chamber that fills with blood) is not working well. When ventricular fibrillation occurs, only a small amount of blood is pumped out of the heart. This is the more serious of the two conditions.
How can you differentiate between atrial fibrillation (AFib) and premature ventricular contractions (PVCs)?
Atrial fibrillation (AFib) is an irregular and rapid heartbeat originating in the upper chambers of the heart, while premature ventricular contractions (PVCs) are early extra heartbeats originating in the lower chambers. AFib may feel like a fluttering or racing heart, while PVCs may feel like a skipped or extra beat. A doctor can use an electrocardiogram (ECG) to diagnose and differentiate between the two conditions.
What is the minimum amount of current enough to kill a man?
100mA of 60Hz AC current for three seconds can cause ventricular fibrillation. From "Deleterious Effecst of Eelctric Shock", Charles F. Dalziel.
What is the difference between sotalol af and sotalol hcl?
Sotalol AF refers to the formulation specifically indicated for atrial fibrillation (AF), while sotalol HCl refers to the general formulation of sotalol hydrochloride used for other arrhythmias like ventricular tachycardia. The dosing and monitoring of sotalol AF may be different due to its specific use for AF.
What is the difference between supra ventricular tachycardia and paroxysmal supra ventricular tachycardia?
PSVT are those SVTs which are sudden, abrupt, almost immediate and unexpected onset and are more regular as well... PSVT is just the type of SVT..
What are the differences between synchronous and asynchronous cardioversion?
Synchronus cardioversion is when shock is delivered on QRS portion of the heart cycle (time when ventricle depolarises). It is used when pulse is present in a patient usually greater than 150/min and sign and symptoms usually of tachycardia. Like in Atrial Fibrillation. But in case of asynchronus cardioversion shock can be given at any time of heart cycle. Pulse is absent like in Ventricular Fibrillation.
Do the ventricles have the same rate as the atria in atrial fibrillation?
No. In atrial fibrillation, the atria have regional depolarizations at a rate of over 300 per minute. Fortunately, the atrioventricular node prevents the ventricular rate from being this high as we would die from lack of cardiac output. There are conditions where the ventricles are depolarized at a rate approximating the atrial depolarization - these include the Lown-Ganong-Levine and Wolff-Parkinson-White syndromes, and consist of abnormal tracts between the atria and ventricles around the AV node.
What are the valves between the atria and the ventricles called?
Atrio-ventricular valves
What does a long QT interval on ECG mean?
It is a lengthening of the amount of time between depolarization of the ventricles of the heart, and the repolarization of the ventricles of the heart. The significance of this lies in the fact that the Q-T interval is a vulnerable time for the heart. Stimulation of the heart muscle during the relative refractory period (which is during the latter part of the Q-T interval) will cause a premature ventricular contraction, which may throw your heart into a dangerous dysrhythmia.
