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 ... interval of > 0.12 seconds ... premature junctional complex ... which will be 0.12 seconds ... premature #atrial #complexes
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
The 4 Variants of ... encompassing a QRS complex ... intervening QRS complex ... • Variant of ... electrocardiogram #variants
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
Second Degree AV ... usually on the second ... There is "group-beating ... Second degree AV ... clinically concerning variant
Second Degree AV Block Type I aka Mobitz I / Wenckebach 
 • Normal P waves.
Second Degree AV ... usually on the second ... There is "group-beating ... #Second #Degree
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV ... • The QRS complex ... #Second #Degree
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
The 4 Variants of ... encompassing a QRS complex ... intervening QRS complex ... • Variant of ... electrocardiogram #variants
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
clinically concerning variant ... may progress to complete