When the plaque in the blood develops on the arterial walls, there is less blood flow to the heart. This condition is known as atherosclerosis. The heart will be tired and fails if it does not receive blood in enough amount
Heart bypass surgery is advised to the patients if their coronary arteries become blocked which leads to a higher risk of a heart attack.
Severe chest pain due to the some of narrow arteries which lead to less blood flow even during rest or any type of light exercise
If the patient has one or more infected coronary artery, or if the main pumping chamber left ventricle doesn’t function or work well.
The left coronary artery which is the main artery that supplies most of the blood to the left ventricle becomes severely blocked or narrowed.