All of the following lead to AV block except?
Hypothyroidism
Ankylosing spondylitis
Lyme disease
Lev's disease
Myxedema AV node can block Ankylosing spondylitis will not cause av block Lyme disease caused by Borrelia burgdorferi, transmitted by Tick Bite & causes Myocarditis & AV block. Lev's disease= Idiopathic fibrosis of conduction system.
ECG and Arrhythmias 1