Left Anterior Fascicular Block

Left anterior fascicular block (LAHB) is block of the left anterior fascicle, manifesting with left-axis deviation on ECG. It is usually benign and asymptomatic, often found incidentally. Treatment: no specific therapy; monitor for progression to bifascicular/trifascicular block; investigate underlying structural heart disease if associated with symptoms.

Common Symptoms

Usually asymptomatic; left-axis deviation on ECG; incidental finding

Causes and Pathogenesis

Degenerative/ischemic disease blocks the left anterior fascicle.

Treatment

No specific therapy; monitor for bifascicular progression; investigate structural disease

Preventive Measures

Monitor ECG; investigate symptoms.

Department to Visit

It is recommended to visit the Cardiology department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.