Conduction Block

• Can occur in or near the AV node (which lies on the pathway between the atria and ventricles)
• Can also occur along other pathways to each ventricle.
• Based on the location and type of block, the impulses between the upper and lower halves of the heart may be slowed or blocked.
• If the signal is completely blocked, certain cells in the AV node or ventricles can make a steady, although usually slower, heartbeat.
• Some blocks may cause no signs or symptoms, and others may cause skipped beats or bradycardia.