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Wolff-Parkinson-White (WPW) syndrome is <mark class="QVRyCf">a rare heart condition that causes an irregular or abnormally fast heartbeat, also known as an arrhythmia</mark>. It's caused by an extra electrical pathway in the heart that's present at birth, which changes the way electrical signals travel and tell the heart to beat. This can lead to a rapid heart rate of over 100 beats per minute, known as tachycardia, and can even trigger cardiac arrest.<span class="UV3uM"> </span>
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<span role="heading" aria-level="2">Symptoms of WPW syndrome include:</span><span class="UV3uM"> </span>
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 	<li class="PZPZlf" data-attrid="SGEListItem">Chest pain or tightness<span class="UV3uM"> </span>
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 	<li class="PZPZlf" data-attrid="SGEListItem">Dizziness or lightheadedness<span class="UV3uM"> </span>
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 	<li class="PZPZlf" data-attrid="SGEListItem">Fainting<span class="UV3uM"> </span>
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 	<li class="PZPZlf" data-attrid="SGEListItem">Palpitations, or feeling your heart flutter or beat harder<span class="UV3uM"> </span>
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 	<li class="PZPZlf" data-attrid="SGEListItem">Shortness of breath or trouble breathing<span class="UV3uM"> </span>
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However, some people with WPW syndrome may not have any symptoms, and the extra electrical connection may only be detected during an electrocardiogram (ECG) for another reason. In these cases, further tests may be needed to determine if treatment is required.<span class="UV3uM"> </span>
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<div class="rPeykc PZPZlf" data-attrid="SGEParagraphFeedback" data-hveid="CA4QAQ" data-ved="2ahUKEwiI6MDS1JeIAxXuzjgGHaetHfUQo_EKegQIDhAB">WPW syndrome affects between 0.1 and 0.3% of the population. It's named after Louis Wolff, John Parkinson, and Paul Dudley White, who described the ECG findings in 1930.<span class="UV3uM"> </span></div>
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