2 doctors weighed in:

Can you please explain the difference in cardiac blocks?

2 doctors weighed in
Dr. Bennett Werner
Internal Medicine - Cardiology
1 doctor agrees

In brief: Several kinds

1st degree-conduction through the av node is >20 ms.
2nd degree type 1, av conduction lengths till a beat is dropped. 2nd degree type 2: beats drop randomly. 3rd degree:there is complete block between the atrial and the ventricles. Bundle branch block: a pathway below the av node (in the ventricles) is blocked - can be right or left. The left has 2 fasicles.

In brief: Several kinds

1st degree-conduction through the av node is >20 ms.
2nd degree type 1, av conduction lengths till a beat is dropped. 2nd degree type 2: beats drop randomly. 3rd degree:there is complete block between the atrial and the ventricles. Bundle branch block: a pathway below the av node (in the ventricles) is blocked - can be right or left. The left has 2 fasicles.
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