First-degree heart block: The electrical impulses slow down as they pass through the conduction system, but the signals all eventually and successfully reach the ventricles. First-degree heart block infrequently causes problems or symptoms. Trained athletes may have first-degree heart block. Some medications are known to cause this condition and treatment is generally not needed. Second-degree heart block (Type [...]
Bradycardia Part I of III
A slow heartbeat (heart rate) is called bradycardia and is an arrhythmia, or a heart rhythm disorder. A normal heart beats about 100,000 times per day, at a usual rate between 60 to 100 times per minute. Changes in heart rate caused by diet, activity, age and medications are common and normal. What [...]
Heart Block
Heart block is a heart rhythm where the heart beats slower than normal (bradycardia). In this condition, the electrical impulses that inform the heart to contract are totally or partially blocked between the atria and the ventricles. This is why heart block is also called atrioventricular block (AV block). What is Heart Block? In normal [...]
An Overview of Heart Diseases and Disorders Part II of II
An Overview of Heart Diseases and Disorders Part II of II Arrhythmias that originate in the ventricles are: Ventricular Tachycardia (VT) Ventricular tachycardia is a life threatening arrhythmia that occurs more often with other serious heart disease; however, sometimes it happens in people with normal hearts. It is a serious condition that needs follow-up and aggressive treatment, [...]