In Wolff-Parkinson-White syndrome, the accessory pathway is also called the Bundle of Kent.

• A. Bundle of Kent
• B. James fibers
• C. Mahaim fiber
• D. Wenckebach bundle

Answer: (A)

In Wolff-Parkinson-White syndrome the extra conducting pathway that bypasses the AV node is called the Bundle of Kent. This ancient name refers to the anomalous bundle that connects atrial tissue directly to ventricular tissue, allowing impulses to reach the ventricles earlier than through the AV node. That early activation causes preexcitation on the ECG (short PR interval with a delta wave) and sets up the potential for reentrant tachycardias. Other terms like James fibers or Mahaim fibers describe different types of accessory pathways with distinct anatomical locations and conduction properties, while Wenckebach bundle isn’t the WPW pathway. So Bundle of Kent is the classic name for the WPW accessory pathway.