Dr. Arnel Carmona @ecgrhythms
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Internal Medicine (IMG) , lover of the squiggly lines and all simplistic learning https://twitter.com/ecgrhythms - blogger @ - https://www.ekgrhythm.com/
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The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
encompassing a QRS complex ... intervening QRS complex ... presence of AV block ... Wandering Atrial ... Pacemaker: •
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
encompassing a QRS complex ... intervening QRS complex ... presence of AV block ... Wandering Atrial ... Pacemaker: •
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• The QRS complex ... clinically concerning variant ... by a junctional pacemaker ... an infra-Hisian pacemaker ... atrioventricular #blocks #AVBlock
Multifocal Atrial Rhythm vs Wandering Atrial Pacemaker
Mutifocal Atrial Rhythm / Multifocal Atrial Tachycardia:
Belong to a group
Pacemaker Mutifocal ... Pacemaker: VARIANT ... of the dominant pacemaker ... node to latent pacemakers ... thus, only one pacemaker
Wandering atrial pacemaker - ECG Diagnosis
 • The change in P wave contour is gradual
 •
Wandering atrial ... pacemaker - ECG ... several cycle the pacemaker ... • Variant of ... wap #Wandering #atrial
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
aka Complete Heart ... rhythm with complete ... by a junctional pacemaker ... an infra-Hisian pacemaker ... ThirdDegree #3rd #AVBlock
A Summary slide of Sinoatrial Rhythms 
 • Sinus Rhythm
 • Sinus Arrhythmia
- Wandering Atrial ... Pacemaker • Multifocal ... Atrial Arrhythmia ... • Premature Atrial ... Complexes • Sinoatrial
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... aka Advanced AV Block ... clinically concerning variant ... may progress to complete ... #Highgrade #AVBlock