Does heart blockage cause your heart to skip beats?

A second-degree heart block may cause the heart to skip a beat or beats, explains the National Heart, Lung and Blood Institute. It also makes a patient feel dizzy or faint.

A heart block is a problem occurring with the electrical system of the heart, which controls the rhythm and rate of heartbeats, explains the National Heart, Lung and Blood Institute. With every heartbeat, an electrical signal is sent across the heart starting from the upper chamber to the lower chamber. As the signal travels, it causes the heart to contract, pumping blood throughout the body. If this signal is disrupted or slowed as it moves through the heart, a heart block occurs.