environment applies to all the external factors that have a formative influence on one's physical, mental, or moral development. the kind of environment that produces juvenile delinquents; milieu applies especially to the physical and social surroundings of a person or group of persons.
Myocardial ischemia is an imbalance between myocardial oxygen supply and demand. Left untreated, it results in angina pectoris, myocardial stunning, myocardial hibernation, ischemic preconditioning, postconditioning, or under the most severe instances, acute coronary syndrome and myocardial infarction.
Or it can occur quickly when an artery becomes blocked suddenly. Conditions that can cause myocardial ischemia include: 1  Coronary artery disease (atherosclerosis). 2  Plaques made up mostly of cholesterol build up on your artery walls and restrict blood flow. 3  Atherosclerosis is the most common cause of myocardial ischemia.