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Revision as of 17:50, 22 June 2016
His-Purkinje system and hemiblocks
Criteria
Diagnostic criteria include[1]:
- Left axis deviation (-45 or more)
- QRS 80-110ms
- rS in II, III, and AVF
- qR in I and aVL
- Increased QRS voltage in the limb leads
Significance
- Considered benign finding
- LAFB may increase risk of AF, CHF, and death[2]
See Also
External Links
References
- ↑ Surawicz B, Knilans T. Chou’s Electrocardiography in Clinical Practice (6th edition), Saunders 2008.
- ↑ Mandyam MC, et al. Long-term outcomes of left anterior fascicular block in the absence of overt cardiovascular disease. JAMA. 2013; 309(15):1587-1588.
