What is the most common cause of heart block?
What is the most common cause of heart block? Coronary artery disease with and without a heart attack is one of the most common causes of heart block. Cardiomyopathies which are diseases that weaken the heart muscle can also result in wire damage. What are the different types of heart blocks? There are three types of heart block:First-degree heart block is the mildest form and usually doesn't cause symptoms. Second-degree heart block has a slower – and sometimes irregular – heart rhythm. Third-degree heart block (complete atrioventricular block) is the most severe form. What are the four types of heart...