<unk><unk><unk><unk>  is a cardiac conduction seen on the electrocardiogram (ECG) whereby there is an impairment of transmission of the cardiac electrical impulse along the fibers of the<unk>  main<unk><unk> , or both the<unk>  anterior fascicle and the<unk>  posterior fascicle.  Most causes of LBBB are the result of some form of cardiac disease but LBBB is also known to be associated with non cardiac causes.
Left bundle branch block causes
Right bundle branch block causes
Sinoatrial arrest causes
Third degree AV block causes
Atrial flutter causes
Supraventricular tachycardia causes
Sinus bradycardia causes
Sinus tachycardia causes