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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Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
Block aka Complete ... by a junctional pacemaker ... #AVBlock #cardiology ... ecg #diagnosis #electrocardiogram ... #classification
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Block type II ( ... location of the block ... • The QRS complex ... location of the block ... cardiology #ecg #ekg #electrocardiogram
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
Third Degree AV ... Block aka Complete ... Heart Block • ... AV block, the PP ... ecg #diagnosis #electrocardiogram
Second degree AV Block 2:1
 • During sinus rhythm, 2 to 1 AV block manifest as
Block 2:1 • During ... AV block ... • A 2:1 AV block ... AV block type I ... diagnosis #ekg #electrocardiogram
Second Degree AV Block Type I aka Mobitz I / Wenckebach 
 • Normal P waves.
Second Degree AV ... Block Type I aka ... #Second #Degree ... #AVBlock #TypeI ... cardiology #ecg #ekg #electrocardiogram
First Degree AV Block
 • The P wave is normal in morphology.
 • PR interval greater
First Degree AV ... Block • The P ... bundle branch block ... #First #Degree # ... ekg #cardiology #electrocardiogram
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 ... diagnosis #ekg #ecg #electrocardiogram
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... aka Advanced AV Block ... high-grade AV block ... may progress to complete ... heart block.
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 ... diagnosis #ekg #ecg #electrocardiogram
Sinoatrial Block (SAB) Type I - (2nd Degree Mobitz Type I)

#cardiology #diagnosis #ekg #ecg #electrocardiogram #heartblock
Sinoatrial Block ... Type I - (2nd Degree ... diagnosis #ekg #ecg #electrocardiogram