Define omission. omission synonyms, omission pronunciation, omission translation, English dictionary definition of omission. n. 1. The act or an instance of omitting. 2. The state of having been omitted. 3. Something omitted or neglected. or n 1. something that has been omitted or...
Causes of heart disease. Heart disease occurs when plaque develops in the arteries and blood vessels that lead to the heart. This blocks important nutrients and oxygen from reaching your heart. Plaque is a waxy substance made up of cholesterol, fatty molecules, and minerals.
What Causes Heart Valve Disease? Heart valve disease can develop before birth (congenital) or can be acquired sometime during one's lifetime. Sometimes, the cause of valve disease is unknown. Congenital valve disease. This form of valve disease most often affects the aortic or pulmonic valve.