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The Wolff-Parkinson-White syndrome (WPW) is an inherited cardiac arrhythmia

The Wolff-Parkinson-White syndrome (WPW) is an inherited cardiac arrhythmia. The disorder is estimated at about 20,000 people in the Netherlands. Many people with WPW syndrome have no symptoms and are therefore unaware that they have the condition. What is the WPW syndrome?
The WPW syndrome is a congenital abnormality of the electrical system of the heart.

Normally occurs launch an electric stimulus in the right atrium in the sinus node. From the sinus node impulse spreads over the atria. Between the atria and ventricles is a second center, the AV node.

The AV node, the electrical stimulus as fixed and diffuses the incentive than instantaneously through a network of nerve fibers about the rooms. The AV node is built by this delay a kind of safety mechanism. Read more about the rhythm.

What is the WPW syndrome?
In WPW syndrome, there is an extra electrical connection between the atria and ventricles: the bundle of Kent. With this bundle, the electrical impulses take an alternative route. They're not all the AV node. The bundle of Kent slows the stimulus, but leave it at full speed.

Too fast rhythm in the atria can so disrupt the rhythm of the rooms. In rare cases there than ventricular fibrillation.

Sometimes it jumps to the WPW syndrome the stimulus through the bundle of Kent back to the atria. There is a circular motion, also known as tachycardia or re-entry tachycardia mentioned.


The bundle of Kent is already present at birth, but the WPW syndrome is usually not hereditary.

What are the symptoms?
The WPW syndrome is not always caused arrhythmias. Often they arise later in life, but they are also at an early age.

The heart beats during an attack very quickly, often more than 200 beats per minute. The pulse is weak.

Symptoms that occur during an attack are:

palpitations
heart pounding
dizziness
(Tend to) get lost
shortness of breath and chest pain
Additional symptoms are:

perspire
unwell
nausea
An attack lasts a few minutes to several hours and is usually self over.Soms it is necessary to stop the attack with medication.

Research & Diagnosis
The WPW syndrome is often seen on an ECG (heart tracing), even when no symptoms. With electrophysiological study (EPS), the physician may examine the risk of arrhythmias.

Treatment
There is a difference in treatment of:

an acute episode of an arrhythmia stop
preventing attacks in future
Stop Attack
And from the ECG shows that a ritemstoornis than there are a number of possible maatregelene:

cardioversion by intravenously administer drugs (antiarrhythmics). The attack is usually within a few minutes.
electrical cardioversion
If the rhythm changes into ventricular fibrillation, the heart pumps no blood around. Then tap unconscious within seconds. There is an electric shock with a defibrillator or AED needed to make the heart back into normal rhythm. This should happen as soon as possible to prevent brain damage.

Attacks prevented in the future
It may be that from your ECG shows that the WPW syndrome, but that you have never suffered from arrhythmia. Then research and treatment are not always necessary.

When evidence of arrhythmia you an electrophysiological study (EPS). After this investigation is unclear whether and what treatment is needed.

The treatment may consist of:

drugs to prevent arrhythmias (antiarrhythmics).
interruption of the bundle of Kent via a catheter ablation or cardiac surgery
In most cases, an ablation of the bundle of Kent successful. Sometimes it is not the connection with a catheter to burn away. Then a heart surgery to the connection off.

Living with the WPW syndrome
Without treatment often take the arrhythmia with age increasing. If the ablation of the additional connection is successful, you can permanently cured of the disease. Control is no longer necessary.

In old age the symptoms may sometimes disappear without treatment because the bundle of Kent conductivity loses its sting.

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