Heart Blocks ECG 39
- Normal sinus rhythm
- Right bundle branch block
- Left anterior fascicular block
The combination of these findings is called a "bifascicular block". When a first degree AV block is present as well, the term "trifascicular block" is also used. Note that either of these two can have a left anterior OR left posterior fascicular block pattern.
Related Topic Reviews: Right Bundle Branch Block, Left Anterior Fascicular Block