| Left anterior fascicular block | |
|---|---|
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| Specialty | Cardiology  |
Left anterior fascicular block (LAFB) is an abnormal condition of the left ventricle of the heart,[1][2] related to, but distinguished from, left bundle branch block (LBBB).
It is caused by only the left anterior fascicle – one half of the left bundle branch being defective. It is manifested on the ECG by left axis deviation. It is much more common than left posterior fascicular block.
- ^ Rebuzzi AG, Loperfido F, Biasucci LM (July 1985). "Transient Q waves followed by left anterior fascicular block during exercise". Br Heart J. 54 (1): 107–9. doi:10.1136/hrt.54.1.107. PMC 481860. PMID 4015909.
- ^ Chandrashekhar Y, Kalita HC, Anand IS (January 1991). "Left anterior fascicular block: an ischaemic response during treadmill testing". Br Heart J. 65 (1): 51–2. doi:10.1136/hrt.65.1.51. PMC 1024464. PMID 1899584.