In a typical heart, electrical signals use only one path whilst moving via the heart. This is the atrio-ventricular or A-V node. As the electrical signal moves from the hearts upper chambers (the atria) to the lower chambers (the ventricles), it causes the heart to beat. For the heart to beat effectively, the timing of the electrical signal is crucial.
If there is certainly an extra conduction pathway, the electrical signal might arrive at the ventricles too soon. This condition is referred to as Wolff-Parkinson-White syndrome (WPW). It's in a category of electrical abnormalities called "pre-excitation syndromes."
It is recognized by particular modifications on the electrocardiogram, a graphical record of the heart's electrical activity. The ECG will then show that an extra pathway or shortcut exists from the atria to the ventricles.
Many people with this syndrome have symptoms or episodes of tachycardia (rapid heart rhythm) could also have dizziness, chest palpitations, fainting and, rarely, cardiac arrest. Other folks with WPW in no way have tachycardia or other symptoms. About eight percent of folks with symptoms very first have them between the ages of eleven and fifty.
Persons without having symptoms usually don't want treatment. Persons with episodes of tachycardia can normally be treated with medication. But sometimes such treatment doesn't work. If the treatment doesn't function they will have to do some thing else.
The most common process utilized to interrupt the abnormal pathway, is radiofrequency or catheter ablation. In this, a flexible tube known as a catheter is guided to the location where the difficulty exists.
Then that tissue is destroyed with radiofrequency energy, stopping the electrical pathway. Profitable ablation ends the want for medication. Whether or not a person are going to be treated with medication or with an ablation procedure depends on a number of elements. These contain the severity and frequency of symptoms, risk for future arrhythmias and patient preference.
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