Diseases & Conditions


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Wolff Parkinson White Syndrome


Synonyms of Wolff Parkinson White Syndrome
  • Accessory Atrioventricular Pathways
  • Preexcitation Syndrome
  • WPW Syndrome

Disorder Subdivisions



    General Discussion
    Wolff-Parkinson-White (WPW) syndrome is a rare congenital heart disorder involving irregularities in the electrical system of the heart. In individuals with WPW syndrome, an abnormal alternate electrical pathway (accessory pathway), exists between the atrium and the ventricle, resulting in abnormal heartbeat rhythms (arrhythmias) and faster than normal heartbeats (tachycardia).

    The normal heart has four chambers. The two upper chambers are the atria and the two lower chambers are the ventricles. Within the right atrium of a normal heart is a natural pacemaker that initiates and controls the heartbeat. The electrical stimulus travels from the pacemaker (sinoatrial or SA node) to the ventricles along a specific pathway consisting of conducting tissue and known as the AV (atrioventricular) node. The extra electrical pathway in individuals with WPW syndrome bypasses the normal route and causes the ventricles to beat earlier than normal (preexcitation) and can allow electrical impulses to be conducted in both directions (i.e., from the atria to the ventricles and from the ventricles to the atria).

    Organizations related to Wolff Parkinson White Syndrome
    • American Heart Association
      National Center
      Dallas TX 75231-4596
      Phone #: 214-373-6300
      800 #: 800-242-8721
      e-mail: inquire@heart.org
      Home page: http://www.americanheart.org
    • Cardiomyopathy Association
      40 The Metro Centre
      Hertfordshire Intl WD1 8SB
      Phone #: 014-419-23249977
      800 #: --
      e-mail: info@caridiomyopathy.org
      Home page: http://www.cardiomyopathy.org
    • Congenital Heart Anomalies, Support, Education, & Resources
      2112 North Wilkins Road
      Swanton OH 43558
      Phone #: 419-825-5575
      800 #: --
      e-mail: chaser@compuserve.com
      Home page: http://www.csun.edu/~hcmth011/chaser/chaser-news.html
    • HOPE (The Heart of Pediatric Electrophysiology)
      PO Box 519
      Park Ridge NJ 07565
      Phone #: 201-505-9383
      800 #: 877-394-4673
      e-mail: info@heartbeatsofhope.org, info@timothysyndrome.org
      Home page: http://www.heartbeatsofhope.org;
    • MUMS (Mothers United for Moral Support, Inc) National Parent-to-Parent Network
      150 Custer Court
      Green Bay WI 54301-1243
      Phone #: 920-336-5333
      800 #: 877-336-5333
      e-mail: mums@netnet.net
      Home page: http://www.netnet.net/mums/
    • NIH/National Heart, Lung and Blood Institute Information Center
      P.O. Box 30105
      Bethesda MD 20824-0105
      Phone #: 301-592-8573
      800 #: --
      e-mail: nhlbiinfo@rover.nhlbi.nih.gov
      Home page: N/A



    For a Complete Report

    This is an abstract of a report from the National Organization for Rare Disorders, Inc. ? (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html