Wandering atrial pacemaker: Difference between revisions
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* [http://www.ecglibrary.com/ecghist.html A history of electrocardiography] | * [http://www.ecglibrary.com/ecghist.html A history of electrocardiography] | ||
* [http://www.health.gov.mt/impaedcard/issue/issue1/ipc00103.htm EKG Interpretations in infants and children] | * [http://www.health.gov.mt/impaedcard/issue/issue1/ipc00103.htm EKG Interpretations in infants and children] | ||
* [http://www.clevelandclinicmeded.com/diseasemanagement/cardiology/ | * [http://www.clevelandclinicmeded.com/medicalpubs/diseasemanagement/cardiology/atrial-fibrillation/ Atrial Fibrillation Management] Cleveland Clinic | ||
{{Electrocardiography}} | {{Electrocardiography}} | ||
Revision as of 18:45, 21 August 2009
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
This atrial arrhythmia occurs when the natural cardiac pacemaker site shifts between the SA node, the atria, and/or the AV node. This shifting of the pacemaker from the SA node to adjacent tissues is manifested electrocardiographically by transient changes in the size shape and direction of the P waves. A wandering pacemaker is usually caused by varying vagal tone. With increased vagal tone the SA Node slows,allowing a pacemaker in the atria or AV Nodal area,which may become slightly faster briefly. After vagal tone decreases the SA Node becomes the pacemaker again.
EKG examples
Additional resources
- ECGpedia: Course for interpretation of ECG
- The whole ECG - A basic ECG primer
- 12-lead ECG library
- Simulation tool to demonstrate and study the relation between the electric activity of the heart and the ECG
- ECG information from Children's Hospital Heart Center, Seattle
- ECG Challenge from the ACC D2B Initiative
- National Heart, Lung, and Blood Institute, Diseases and Conditions Index
- A history of electrocardiography
- EKG Interpretations in infants and children
- Atrial Fibrillation Management Cleveland Clinic