Many types of heart disease cause arrhythmia. Coronary disease is often a trigger. It triggers arrhythmia because coronary heart disease produces scar tissue in the heart. This scar tissue disrupts the transmission of signals which control the heart rhythm. Some people are born with arrhythmias, meaning the condition is congenital .
Atherosclerosis is also a factor in causing arrhythmia.
Other medical conditions such as diabetes and high blood pressure also are factors. Many different techniques are used to diagnose arrhythmia. An EKG is the best test for diagnosing arrhythmia. This test helps doctors analyze the electrical currents of your heart and determines the type of arrhythmia you have. Holter monitoring .