An Attempt to Localize the Pre-Excitation Site in Wolff-Parkinson-White Patients by Means of a Mathematical Model
Normal conduction of excitation between the atria and the ventricles takes place through the atrio-ventricular (A-V) node, the His bundle and its branches in approximately 80 msec. In the Wolff-Parkinson-White (W.P.W.) syndrome the excitatory process reaches the ventricular myocardium earlier than normal (pre-excitation) through an anomalous conducting bundle which bypasses the A-V node somewhere along the fibrous rings (Kent bundles) or emerges from the His bundle or the initial portions of the bundle branches (Mahaim fibers). Accordingly, pre-excitation spreads to the ventricles at different sites in individual patients, thus bringing about different potential patterns at the body surface. Since excitation spreads also through the normal pathways, a mixed beat occurs.
KeywordsMold Rubber Assure Fibril Verse
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