We arrives on a side street two blocks away where there is a stretch of brick houses with high stoops and iron fences. View in context The firing died down and soldiers, talking eagerly, streamed out of a side street.
An irregular heartbeat is an arrhythmia (also called dysrhythmia). Heart rates can also be irregular. A normal heart rate is 50 to 100 beats per minute. Arrhythmias and abnormal heart rates don't necessarily occur together. Arrhythmias can occur with a normal heart rate, or with heart rates that are slow (called bradyarrhythmias -- less than 50 beats per minute).
Heart block is an abnormal heart rhythm that usually results in a slow heart rate. It is caused by a problem in the heartâs electrical system, also called the conduction system.