Variant accessory pathways include atriofascicular, nodofascicular, nodoventricular, atrio-Hisian, and fasciculoventricular pathways. Atriofascicular pathways are the most common with others occurring rarely. The anatomical descriptions, electrocardiographic findings, electrophysiologic findings, and clincial manifestations are discussed.
Keywords: Brechenmacher; Mahaim; accessory pathways; atrio-Hisian; atriofascicular; catheter ablation; fasciculoventricular; nodofascicular; nodoventricular.
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