AVB: 2nd degree
Results:
Second-Degree AV Block Type I
(Mobitz I/Wenckebach)
Key Points Definition: Progressive lengthening of the PR interval until one atrial impulse fails to conduct to the ventricles (a dropped QRS complex). Site of Block: Typically within the AV…
Second-Degree AV Block with 2:1 Conduction
Key Points Definition: A form of second-degree AV block in which every other atrial impulse is blocked, producing a 2:1 atrioventricular conduction ratio. Diagnostic Challenge: Differentiating between Mobitz I and…
Second-Degree AV Block Type II (Mobitz II)
Key Points Definition: Mobitz II is a type of second-degree AV block defined by sudden, intermittent failure of atrial impulses to conduct to the ventricles, without progressive PR interval lengthening…
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