Bifascicular block
From Self-sufficiency
| Bifascicular block | |
|---|---|
| Classification and external resources | |
| File:RBBB with first degree AV block.jpg | |
| ICD-10 | I45.2 |
| ICD-9 | 426.53 |
Bifascicular block is a conduction abnormality in the heart where two of the three main fascicles of the His/Purkinje system are blocked.
Most commonly, it refers to a combination of right bundle branch block (RBBB) and either left anterior fascicular block (LAFB) or left posterior fascicular block (LPFB), with the former being more common.[1]
Some authors consider left bundle branch block (LBBB) to be a technical bifascicular block, since the block occurs above the bifurcation of the left anterior and left posterior fascicles of the left bundle branch.
Image
- Bifascicular block ECG.png
Bifascicular block on an electrocardiogram.
References
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- ↑ "Lesson VI - ECG Conduction Abnormalities". Retrieved 2009-01-07.
