Wandering atrial pacemaker: Difference between revisions
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==Differential Diagnosis== | ==Differential Diagnosis== | ||
* Intrinsic cardiac or pulmonary disease | |||
* Metabolic derangements | |||
* Drug toxicity (includind Digoxin) | |||
==Evaluation== | ==Evaluation== | ||
Revision as of 00:43, 6 October 2021
Background
- Three or more ectopic foci within the atrial myocardium serve as the pacemaker
- Rate is less than 100bpm (in contrast to MAT)
- Is irregularly irregular therefore sometimes confused with atrial fibrillation and sinus arrhythmia
Clinical Features
- Often seen in the extremes of age and in athletes
- Rarely causes symptoms
Differential Diagnosis
- Intrinsic cardiac or pulmonary disease
- Metabolic derangements
- Drug toxicity (includind Digoxin)
Evaluation
Workup
- ECG
- Will show three distinct P wave morphologies with a ventricular rate <100bpm