Wandering atrial pacemaker: Difference between revisions
| Line 11: | Line 11: | ||
* Intrinsic cardiac or pulmonary disease | * Intrinsic cardiac or pulmonary disease | ||
* Metabolic derangements | * Metabolic derangements | ||
* Drug toxicity ( | * Drug toxicity (including Digoxin) | ||
==Evaluation== | ==Evaluation== | ||
Revision as of 00:45, 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 (including Digoxin)
Evaluation
Workup
- ECG
- Will show three distinct P wave morphologies with a ventricular rate <100bpm
Diagnosis
Management
- Rarely requires treatment