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What are its causes and treatment?

![Wandering atrial pacemaker][1]


[1]: http://www.bem.fi/book/19/fi/1902e.gif

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1 Answer

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by Junior Resident (2.0k points)
Wandering atrial pacemaker produces a supraventricular rhythm in which a pacemaker impulses originate from two or more sites in the SA node, atria, or AV junction and discharge at a rate of 60 to 100 bpm.

**Causes:**

 1. Chronic lung disease
 2. Valvular heart disease

**Characteristics:**

 1. P wave morphologies vary because impulses originate from different sites.
 2. P-P intervals may also vary because each impulse travels through the atria via a slightly different route.
 3. There is one P wave fore every QRS complex.
 4. The overall atrial and ventricular rates remain between 60-100 bpm.
 5. QRS complexes are usually unchanged. They are narrow as long as ventricular depolarization is undisturbed.

**Treatment:**
Treatment of the underlying cause

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