The size of the deletion varies among people with WHS, and studies suggest larger deletions tend to result in more severe features. WHS is caused by a missing piece (deletion) of genetic material near the end of the short (p) arm of chromosome 4 (written as 4p-). Other features may include skeletal abnormalities, congenital heart defects, hearing loss, urinary tract malformations, and/or structural brain abnormalities. The major features include a characteristic facial appearance, delayed growth and development, intellectual disability, low muscle tone (hypotonia), and seizures. Wolf-Hirschhorn syndrome (WHS) is a genetic disorder that affects many parts of the body. Most cases of WHS are not inherited, but some cases are inherited from a parent who does not have WHS. ![]() They may not experience heart palpitations, and the syndrome may only be picked up if they have an electrocardiogram (ECG) for another reason.Wolf-Hirschhorn syndrome (WHS) is a genetic disorder that affects many parts of the body. Someone with the syndrome may have heart palpitations, where the heart feels like it’s pounding, fluttering or beating irregularly for a few seconds or minutes. ![]() If a person known to have WPW syndrome collapses or faints then this is an emergency, which requires a 999 ambulance call. This reduces the amount of blood being pumped around the body, which can give the symptoms of dizzy or light-headedness, shortness of breath, and faintness or fainting. The heart muscle contracts at such a fast rate that it has very little time to relax and fill with blood inbetween contractions. In WPW syndrome, electrical signals in the heart can travel round and round in a loop, causing the heart to beat very fast. They then relax, allowing the heart to fill with blood again. When the heart beats normally, its muscular walls contract (tighten and squeeze) to force blood out and around the body. The combination of the syndrome and atrial fibrillation can be life threatening and requires emergency assessment. In rare cases of WPW syndrome, a person’s heart rate can increase significantly when a heart rhythm called atrial fibrillation occurs. pounding heartbeat that occurs suddenly.Some people might have episodes on a daily basis, whereas others may only experience them occasionally.Ĭhildren with the syndrome will often report having symptoms such as:Īdults often experience symptoms such as a: ![]() The frequency with which episodes occur can vary from person to person. WPW syndrome is a condition that makes the heart suddenly beat abnormally fast, in an abnormal heart rhythm called supraventricular tachycardia (SVT).Įpisodes can last for seconds, minutes, hours or, in rare cases, days. Most people experience symptoms between the ages of 30 and 40. In the UK, between 1 and 3 people in every 1,000 are thought to have WPW syndrome Wolff-Parkinson-White syndrome (WPW) is most common in children who are born with a heart condition ( congenital heart disease), but it can also occur in those without.
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