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- Wandering_pacemaker abstract "In cardiology, a wandering atrial pacemaker, also known as WAP, is an atrial arrhythmia that occurs when the natural cardiac pacemaker site shifts between the sinoatrial node (SA node), the atria, and/or the atrioventricular node (AV node). This shifting of the pacemaker from the SA node to adjacent tissues is identifiable on ECG Lead II by morphological changes in the P-wave; sinus beats have smooth upright P waves, while atrial beats have flattened, notched, or diphasic P-waves.It is often seen in the very young, very old, in athletes and rarely causes symptoms or requires treatment[citation needed].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 briefly become slightly faster. After vagal tone decreases, the SA Node assumes its natural pace.A wandering atrial pacemaker (also termed multifocal atrial rhythm) is present when there are three or more ectopic foci within the atrial myocardium that serve as the dominant pacemaker (waveform 5). Since they discharge in random fashion, the pacemaker location is continuously shifting and may be located anywhere in the atrial myocardium. As a result, there is a changing vector of atrial activation that causes a changing P wave morphology and PR interval duration. A dominant P wave (sinus or atrial) cannot be identified. The rate is less than 100 beats per minute.The QRS intervals have variable cycle lengths since the ectopic foci exhibit differences in automaticity and rates of impulse generation. The rhythm is therefore irregularly irregular, and it can be confused with atrial fibrillation. However, in contrast to atrial fibrillation, distinct P waves are present. Sinus arrhythmia may also be irregularly irregular; however, one P wave morphology and PR interval are seen in this situation. This arrhythmia may also be confused with sinus rhythm with multifocal premature atrial contractions, although in this situation a dominant sinus P wave can be identified and there are periods of RR interval regularityVentricular conduction is normal with wandering pacemaker, and thus the QRS complex is normal.".
- Wandering_pacemaker icd9 "427.89".
- Wandering_pacemaker thumbnail NSR-atrial_fusion-AJR-shifting_pacemaker.png?width=300.
- Wandering_pacemaker wikiPageExternalLink ekgwap.html.
- Wandering_pacemaker wikiPageExternalLink Wandering_Pacemaker.
- Wandering_pacemaker wikiPageExternalLink atrial-fibrillation.
- Wandering_pacemaker wikiPageExternalLink coursematerial-187.pdf.
- Wandering_pacemaker wikiPageID "9259251".
- Wandering_pacemaker wikiPageRevisionID "585779553".
- Wandering_pacemaker caption "Shifting pacemaker".
- Wandering_pacemaker hasPhotoCollection Wandering_pacemaker.
- Wandering_pacemaker icd "427.89".
- Wandering_pacemaker name "Wandering pacemaker".
- Wandering_pacemaker wordnet_type synset-disease-noun-1.
- Wandering_pacemaker subject Category:Cardiac_dysrhythmia.
- Wandering_pacemaker type Abstraction100002137.
- Wandering_pacemaker type Attribute100024264.
- Wandering_pacemaker type Condition113920835.
- Wandering_pacemaker type Disease114070360.
- Wandering_pacemaker type IllHealth114052046.
- Wandering_pacemaker type Illness114061805.
- Wandering_pacemaker type PathologicalState114051917.
- Wandering_pacemaker type PhysicalCondition114034177.
- Wandering_pacemaker type State100024720.
- Wandering_pacemaker type Disease.
- Wandering_pacemaker type AilmentCondition.
- Wandering_pacemaker type Situation.
- Wandering_pacemaker comment "In cardiology, a wandering atrial pacemaker, also known as WAP, is an atrial arrhythmia that occurs when the natural cardiac pacemaker site shifts between the sinoatrial node (SA node), the atria, and/or the atrioventricular node (AV node).".
- Wandering_pacemaker label "Marcapaso migratorio".
- Wandering_pacemaker label "Segnapassi migrante".
- Wandering_pacemaker label "Wandering pacemaker".
- Wandering_pacemaker sameAs Wandering_pacemaker.
- Wandering_pacemaker sameAs Marcapaso_migratorio.
- Wandering_pacemaker sameAs Segnapassi_migrante.
- Wandering_pacemaker sameAs m.0281_1n.
- Wandering_pacemaker sameAs Q3486412.
- Wandering_pacemaker sameAs Q3486412.
- Wandering_pacemaker sameAs Wandering_pacemaker.
- Wandering_pacemaker wasDerivedFrom Wandering_pacemaker?oldid=585779553.
- Wandering_pacemaker depiction NSR-atrial_fusion-AJR-shifting_pacemaker.png.
- Wandering_pacemaker isPrimaryTopicOf Wandering_pacemaker.
- Wandering_pacemaker name "Wandering pacemaker".