CanadiEM - By Paula Sneath - June 12, 2019
"Objectives
- Review the physiology of Wolff-Parkinson-White Syndrome (WPW)
- Review the management of SVT in WPW and consider potential complications
What are WPW and AVRT?
Preexcitation describes the situation in which impulses from the SA node or atrium reach the ventricle through an accessory pathway (a bypass tract) in addition to the AV node. WPW is a type of preexcitation syndrome in which there are ECG findings of an atrial-ventricular bypass tract (often, but erroneously, called Kent bundles) and the patient demonstrates related tachydysrhythmias. The most common tachydysrhythmia seen in WPW is atrioventricular re-entrant tachycardia (AVRT) – this is seen in 80% of patients with WPW and is what paramedics would most commonly be called for..."
