Aug 29, 2025 · Also known as bypass tracts, APs are abnormal conduction pathways formed during cardiac development and can exist in a variety of anatomical locations and in some patients there …

In cardiology, an accessory pathway is an additional electrical connection between two parts of the heart. [1] These pathways can lead to abnormal heart rhythms (arrhythmias) associated with …

Blocking of conduction through the atrioventricular node may lead to accelerated impulse transmission through the accessory pathway, whereby atrial fibrillation may cause ventricular fibrillation and …

Sep 29, 2025 · Patients with a preexcitation syndrome have an additional or alternative pathway, known as an accessory pathway, which directly connects the atria and ventricle and bypasses the AV node.

Accessory pathways are microscopic muscular bundles that connect the atrium and ventricle, providing a “bypass” of the normal conduction system (Tables 20-1 and 20-2). Manifest pathways (capable of …

Feb 1, 2025 · WPW syndrome is a rare congenital cardiac condition in which the patient has single or multiple accessory pathways along the atrioventricular border that predispose them to potentially …

Accessory pathways are anomalous electrical conduits that are not part of the normal specialized conduction system. Although often used interchangeably, the terms pathway, connection, and tract …

accessory pathway (accessory conduction pathway) extra muscle tissue between the atrium and ventricle that bypasses all or part of the normal conduction system.

Patients were divided into four groups based on the type and location of their accessory pathway: septal, right free wall, left free wall, and concealed.

Jul 21, 2025 · Explore functional decremental conduction and QRS variability in fasciculoventricular accessory pathways. Key insights for better diagnosis.