Types
There are two non-distinct types of second-degree AV block, called Type 1 and Type 2. In both types, a P wave is blocked from initiating a QRS complex; but, in Type 1, there are increasing delays in each cycle before the omission, whereas, in Type 2, there is no such pattern.
Type 1 second-degree heart block is considered a more benign entity than type 2 second-degree heart block.
Both types are named after Woldemar Mobitz. Type I is also named for Karel Frederik Wenckebach, and type II is also named for John Hay.
Read more about this topic: Second-degree Atrioventricular Block
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