It is caused by only the anterior half of the left bundle branch being defective. It is manifest on the ECG by left axis deviation
it can be normal - up to 5-6 % normal people have LAHB
It is the most common type of intraventricular conduction defect seen in acute anterior myocardial infarction
, and the left anterior descending artery
is usually the culprit vessel.
It can be seen with acute inferior wall myocardial infarction.
It also associated with hypertensive heart disease
, aortic valvular disease, cardiomyopathies, and degenerative fibrotic disease of the cardiac skeleton
MY SUGGESTION IS DO AN ECHOCARDIOGRAM
JUST FOR ASSURANCE BECAUSE HE HAS NO SYMPTOM