omission (ÉÊËmÉªÊÉn) or omittance n 1. something that has been omitted or neglected 2. the act of omitting or the state of having been omitted [C14: from Latin omissiÅ, from omittere to omit] oËmissive adj oËmissiveness n. oâ¢misâ¢sion (oÊËmÉªÊ Én) n. 1. the act of omitting. 2. the state of being omitted.
Causes of Heart block. Heart block is caused by certain medications, surgery and primary disease (an infection). A child can also be born with heart block (congenital heart block). Following is a list of causes or underlying conditions (see also Misdiagnosis of underlying causes of Heart block) that could possibly cause Heart block includes: 1  Heart attack. 2  Coronary artery disease. 3  Sinus node disease.  Congenital heart defect.
What could cause an irregular heart rate? An irregular heart rate can be caused by a panic attack or by strong emotions, such as fear, stress or anxiety, according to WebMD. An irregular heartbeat can also be caused by intense exercise.