An accessory pathway is an additional electrical conduction pathway between two parts of the heart. It alters characteristics of the electrical conduction system of the heart, and so has the potential to affect the cardiac cycle.
Conditions involving accessory pathways include:
- paroxysmal supraventricular tachycardia
- Wolff–Parkinson–White syndrome (in which the accessory pathway is referred to as the "bundle of Kent")
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