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 ... may progress to complete ... aka Complete Heart ... Block • In sinus ... rhythm with complete
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
Premature atrial ... complex (PAC) - ... look like the sinus ... premature junctional complex ... #complexes #cardiology
A Summary slide of Sinoatrial Rhythms 
 • Sinus Rhythm
 • Sinus Arrhythmia
Sinoatrial Rhythms • Sinus ... Rhythm • Sinus ... Pacemaker • Multifocal ... Complexes • Sinoatrial ... Blocks - SAB
The 3 Fates of a Premature Atrial Complex
 • PAC can be conducted with normal QRS
of a Premature Atrial ... Complex • PAC ... • PAC can be blocked ... electrocardiogram #premature #atrial ... #complexes
Wandering atrial pacemaker - ECG Diagnosis
 • The change in P wave contour is gradual
 •
Wandering atrial ... shifts back to the sinus ... • Variant of ... sinus arrhythmia ... wap #Wandering #atrial
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
aka Complete Heart ... Block • In sinus ... rhythm with complete ... by a junctional pacemaker ... #3rd #AVBlock #Complete
Multifocal Atrial Rhythm vs Wandering Atrial Pacemaker
Mutifocal Atrial Rhythm / Multifocal Atrial Tachycardia:
Belong to a group
Pacemaker Mutifocal ... Pacemaker: VARIANT ... OF SINUS ARRHYTHMIA ... of the dominant pacemaker ... focus from the sinus
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... aka Advanced AV Block ... • During sinus ... clinically concerning variant ... may progress to complete