Kent Bundle (Accessory Pathway) — RCES Exam Glossary

A congenital muscular connection crossing the AV groove outside the normal conduction system, bypassing the AV node's physiological delay; causes pre-excitation (short PR, delta wave) and predisposes to AVRT and, in atrial fibrillation, dangerously rapid ventricular rates.

Normal conduction shown delayed at the AV node compared with a Kent bundle bypassing it across the atrioventricular groove, and the resulting ECG change from a normal PR interval to a short PR interval and delta wave. — The bypass that removes the AV node’s protective delay — and its ECG signature.

Domain: EP Anatomy & the Conduction System · Blueprint: RCES exam guide

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