What Are the Treatments for First-Degree Heart Block?
First-degree heart block is a conduction delay of the electrical impulse through the atria to the ventricles. Normally an electrical impulse travels from atria to ventricle in 0.2 seconds. A first-degree block occurs when the interval is prolonged, but each impulse reaches the ventricles, so there are no skipped beats. First-degree heart block usually causes no symptoms and requires no specific treatment, according to The Merck Manuals Online Medical Library. Discovery of the condition usually occurs during routine electrocardiogram testing.