What causes heart nerve blockage?
The pounding of your heart is controlled by electrical signals. Conduction is the method by which they inform your heart muscle when to contract. Normal heartbeat timing is generated in the upper chambers of the heart (atria) by a mechanism known as the sinus node. When you have a heart block, the electrical signals that normally travel from the atria to the ventricles are disrupted. Congenital heart block occurs when a heart block is present at birth. This condition is caused by either a disorder your mother had throughout her pregnancy or heart abnormalities you were born with. Most people acquire heart block as they get older because the wires that connect the top and bottom of the heart can deteriorate and eventually collapse. Sometimes this happens as we become older. Any process that damages these heart wires can cause a heart block. Coronary artery disease , both with and without a heart attack, is one of the most common causes of heart block. Cardiomyopathies...