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
(AV blocks) - ECG ... Block • In sinus ... by a junctional pacemaker ... #ekg #ecg #diagnosis ... electrocardiogram #classification
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 ... cardiology #diagnosis #ekg
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
Third Degree AV Block ... Block • In sinus ... AV block, the PP ... by a junctional pacemaker ... #ekg #ecg #diagnosis
Sinus pause/arrest vs Sinoatrial Block

#cardiology #diagnosis #ekg #ecg #electrocardiogram #sinuspause #sinoatrialblock
Sinus pause/arrest ... vs Sinoatrial Block ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV Block ... location of the block ... • The QRS complex ... location of the block ... Second #Degree #AVBlock
A Summary slide of Sinoatrial Rhythms 
 • Sinus Rhythm
 • Sinus Arrhythmia
Sinoatrial Rhythms • Sinus ... Rhythm • Sinus ... Wandering Atrial Pacemaker ... Premature Atrial Complexes ... • Sinoatrial Blocks
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 ... cardiology #diagnosis #ekg
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... • During sinus ... may progress to complete ... #Highgrade #AVBlock ... #ekg #electrocardiogram
Paroxysmal AV Block on ECG
 - Characterized by an abrupt and persistent AV block in the
Paroxysmal AV Block ... persistent AV block ... or slowing of sinus ... initiated, the block ... #Paroxysmal #AVBlock
Paroxysmal AV Block aka Ventricular Standstill
 • Abrupt and persistent AV block ( multiple P waves
Paroxysmal AV Block ... persistent AV block ... or slowing of sinus ... #Paroxysmal #AVBlock ... #ekg #electrocardiogram