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accessory pathway |
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accessory pathway, an abnormal conduction pathway between an atrium and a ventricle. Ventricular activation via an accessory pathway slows initial ventricular contraction, producing preexcitation and the delta wave of Wolff-Parkinson-White syndrome. The delta wave shortens the P-R interval, and broadens the QRS complex. The most common associated arrhythmias are paroxysmal supraventricular tachycardia and atrial fibrillation. Patients may be cured by transvenous radiofrequency ablation of the accessory pathway or may be treated pharmacologically. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| ? Mentioned in | ? References in periodicals archive | |
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For SCD to occur in patients with WPW, a
rapidly-conducting accessory pathway plus atrial fibrillation are
necessary. Four electrophysiologists from the Leiden University Medical
Center, the Netherlands, conducted the study on 30 patients, who
presented with a wide variety of arrhythmias, including atrial flutter,
ventricular tachycardia or accessory pathways. |
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