The main symptom associated with heart block is fainting (syncope). The extent to which this occurs depends on the type and extent of the conducting disturbance.
First degree heart block is fairly common. It can sometimes be found in teenagers, young adults and in well-trained athletes. The condition may be caused by rheumatic fever, some types of heart disease and by some drugs. First-degree heart block causes no symptoms. Second degree heart block may not cause symptoms. Second degree block can sometimes progress to third-degree. Third degree heart block is a serious condition that usually affects the heart's ability to pump blood effectively.
More information on heart block
What is heart block? - Heart block is a disorder of the heartbeat. Heart block is common in elderly people as their hearts have undergone degenerative changes. What's first degree heart block? - First-degree heart block, or first-degree AV block, is when the electrical impulse moves through the AV node more slowly than normal. What's second degree heart block? - Second degree heart block is a disease of the electrical conduction system of the heart. There are two distinct types of second degree heart block. What's third degree or complete heart block? - Third degree heart block, also known as complete heart block, is a disease of the electrical system of the heart. What causes heart block? - Heart block has a variety of causes. It can sometimes be a result of a congenital defect. It can also occur after a heart attack or as a result of myocarditis. What are the symptoms of heart block? - The main symptom associated with heart block is fainting (syncope). Second degree heart block may not cause symptoms. How is heart block diagnosed? - Heart blocks can be diagnosed with a test called an electrocardiogram (ECG), which measures the heart's electrical activity. What're the treatments for heart block? - First-degree heart block requires no treatment even when it is caused by heart disease. A temporary pacemaker may be used in an emergency.
All information is intended for reference only. Please consult your physician for accurate medical advices and treatment. Copyright 2005, health-cares.net, all rights reserved. Last update: July 18, 2005