A condition within the heart’s conducting tissue which makes the heart beat dangerously fast. It can be fatal.
Episodes of rapid heart rate caused by an extra, abnormal electrical conduction pathway between the upper and lower parts of the heart; also known as pre-excitation syndrome. In a healthy heart, the electrical signals that trigger a heartbeat follow a specific route from the atria (upper chambers) to the ventricles (lower chambers). In Wolff- Parkinson-White syndrome, the electrical signals instead travel along an accessory pathway known as the Kent bundle, which can cause the heart to beat abnormally fast, more than 100 beats per minute (see tachycardia). Other symptoms can include light-headedness, palpitations (an uncomfortably rapid heart rate), and syncope (fainting). Symptoms, which usually appear between ages 10 and 50, can vary in severity from person to person, ranging from nonexistent to disabling.
A disease manifested by occasional episodes of potentially life-threatening tachycardia, in which there is an abnormal electrical pathway in the heart connecting the atria to the ventricles.
A deviant and accelerated heart rhythm, stemming from the presence of an additional pathway through which electrical impulses travel from the atria to the ventricles, is classified as supraventricular tachycardia. This abnormality in the heart’s electrical conduction system can lead to episodes of rapid heartbeat, potentially causing discomfort or distress to the individual experiencing it.
A type of early stimulation of the heart’s ventricles, which can be persistent, temporary, or occurring in sudden episodes. Generally, the heart is normal, and this condition is identified solely through electrocardiography.