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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Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
Premature atrial ... complex (PAC) - ... look like the sinus ... PACs #premature #atrial ... #diagnosis #ekg
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
intervening QRS complex ... presence of AV block ... Wandering Atrial ... Pacemaker: • ... cardiology #diagnosis #ekg
A Summary slide of Sinoatrial Rhythms 
 • Sinus Rhythm
 • Sinus Arrhythmia
Sinoatrial Rhythms • Sinus ... Rhythm • Sinus ... Pacemaker • Multifocal ... Complexes • Sinoatrial ... diagnosis #cardiology #ekg
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
intervening QRS complex ... presence of AV block ... Wandering Atrial ... Pacemaker: • ... cardiology #diagnosis #ekg
Wandering atrial pacemaker - ECG Diagnosis
 • The change in P wave contour is gradual
 •
Wandering atrial ... pacemaker - ECG ... shifts back to the sinus ... • Variant of sinus ... #diagnosis #ekg
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
aka Complete Heart ... Block • In sinus ... by a junctional pacemaker ... an infra-Hisian pacemaker ... #ekg #ecg #diagnosis
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• During sinus ... Block • In sinus ... 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 ... OF SINUS ARRHYTHMIA ... focus from the sinus ... diagnosis #cardiology #ekg ... #ecg #electrocardiogram
Ectopic atrial rhythm
 • The atrial rate is less than 100 bpm.
 • PR interval within
• The atrial ... P wave during sinus ... pacemaker is in ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
• During sinus ... may progress to complete ... #Highgrade #AVBlock ... diagnosis #cardiology #ecg ... #ekg #electrocardiogram