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Tachyarrhythmia: Multifocal Atrial Tachycardia and Wolff-Parkinson-White-Syndrome (WPW)

by Carlo Raj, MD
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    Let us continue. We will take a look at supraventricular tachycardias. The way that this is set up is so that we haven't given you all four. I haven't given you all four. Tachyarrhythmia is here so that you are not confused as to which one is which. There was a discussion with atrial flutter and atrial fibrillation and we distinguished between the two very clearly, primarily in terms of its description, irregularly irregular would be which one? Atrial fibrillation. If it is regular and you have a 2:1 type of pattern, which means two P waves for every one QRS complex, then you have a regular rhythm and this will then bring us to flutter and saw-tooth. So these were the two supraventricular tachycardias that you need to make sure that you know in great detail and then here we will take a look at two others. One known as multifocal atrial tachycardia. Now we will do the same thing. Do not allow the name to fool you, confuse you and frustrate you, in fact, used the name to then clue you when as to the diagnosis of your patient. So multifocal atrial tachycardia is once again dealing with the atria, thus, it is a SVT, a supraventricular tachycardia. Keep in mind that the objective at all times is to make sure that you prevent these tachycardias from entering the ventricles. Due to focal pacemaker abnormalities, I will tell you what that means in a second and what end up happening here is a multifocal or multiple ectopic pacemaker firing. And by a pacemaker, we are referring to our SA node. Thus, the P wave is going to be quite operative for us to pay attention to, leading to tachycardia of course. Rapid abnormal P wave, well that once...

    About the Lecture

    The lecture Tachyarrhythmia: Multifocal Atrial Tachycardia and Wolff-Parkinson-White-Syndrome (WPW) by Carlo Raj, MD is from the course Arrythmias. It contains the following chapters:

    • Multi-Focal Atrial Tachycardia: Pathogenesis
    • Multi-focal Atrial Tachycardia: Diagnosis & Treatment
    • Wolf-Parkinson White Syndrome: Definition
    • Wolf-Parkinson White Syndrome: Diagnosis & Treatment
    • For The Boards

    Author of lecture Tachyarrhythmia: Multifocal Atrial Tachycardia and Wolff-Parkinson-White-Syndrome (WPW)

     Carlo Raj, MD

    Carlo Raj, MD


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