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
Second Degree AV ... usually on the second ... Second degree AV ... aka Advanced AV ... term given is advanced
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV ... Block type II ( ... • The QRS complex ... #Second #Degree ... #AVBlock #TypeII
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
Premature atrial complex ... • Prematurity and ... inverted in II, Ill and ... interval of > 0.12 seconds ... which will be 0.12 seconds
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
aka Advanced AV ... variant of Mobitz II and ... conduction disease and ... may progress to complete ... #Highgrade #AVBlock
Second degree AV Block 2:1
 • During sinus rhythm, 2 to 1 AV block manifest as
Second degree AV ... is a subtype of second ... could either be second ... #Second #degree ... #2nd #AVBlock #2to1
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
with respiration and ... • The P wave and ... encompassing a QRS complex ... intervening QRS complex ... presence of AV block
Third Degree AV Block aka Complete Heart Block
 • In sinus rhythm with complete AV block,
aka Complete Heart ... rhythm with complete ... AV block, the PP ... ThirdDegree #3rd #AVBlock ... #Complete #cardiology
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
with respiration and ... • The P wave and ... encompassing a QRS complex ... intervening QRS complex ... presence of AV block