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
complex (PAC) - ... look like the sinus ... premature junctional complex ... #complexes #cardiology ... electrocardiogram #clinical
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
encompassing a QRS complex ... intervening QRS complex ... Wandering Atrial ... Pacemaker: • ... electrocardiogram #variants #clinical
A Summary slide of Sinoatrial Rhythms 
 • Sinus Rhythm
 • Sinus Arrhythmia
Sinoatrial Rhythms • Sinus ... Rhythm • Sinus ... Pacemaker • Multifocal ... Atrial Arrhythmia ... Complexes • Sinoatrial
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
encompassing a QRS complex ... intervening QRS complex ... Wandering Atrial ... Pacemaker: • ... electrocardiogram #variants #clinical
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• The QRS complex ... • This is a clinically ... may progress to complete ... Degree AV Block aka Complete ... rhythm with complete
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
Degree AV Block aka Complete ... Heart Block • In sinus ... rhythm with complete ... by a junctional pacemaker ... #3rd #AVBlock #Complete
Premature Atrial Complexes and Bradycardia

ECG Tip: If there is a sudden onset of (V) bradycardia, check
Premature Atrial ... Complexes and Bradycardia ... complexes #PACs ... #bradycardia #clinical ... #Complexes #electrocardiogram
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
Block • During sinus ... • This is a clinically ... may progress to complete