Coronary artery bypass grafting (CABG) or Heart Bypass is a type of surgery that improves blood flow to the heart. Surgeons use CABG to treat people who have severe coronary heart disease (CHD). Since Longer life expectancy has led to an increased incidence of cardiovascular disease and consequently to an increasing number of primary and secondary coronary artery bypass grafting (CABG) operations in the elderly. A secondary Bypass surgery is called a Redo Bypass Surgery. Redo Bypass is a relatively difficult procedure and requires an extensive experience by the heart surgeon an extensive to perform the heart bypass surgery.
CHD is a disease in which high cholesterol levels would lead to formation of a waxy substance called plaque inside the coronary arteries. These arteries supply oxygen-rich blood to your heart. Over time, plaque can harden or rupture (break open). Hardened plaque narrows the coronary arteries and reduces the flow of oxygen-rich blood to the heart. This can cause chest pain or discomfort called Angina.
If the plaque ruptures, a blood clot can form on its surface. A large blood clot can mostly or completely block blood flow through a coronary artery. This is the most common cause of a heart attack. Over time, ruptured plaque also hardens and narrows the coronary arteries.
A Redo-CABG is required in cases where the Coronary arteries narrow down again due to the existing CHD leading to the formation of plaque again in the Coronary arteries.
During CABG/Redo CABG, a healthy artery or vein from the body is connected, or grafted, to the blocked coronary artery by the surgeon. The heart surgeon ensures that the grafted artery or vein bypasses (that is, goes around) the blocked portion of the coronary artery. This creates a new path for oxygen-rich blood to flow to the heart muscle.
- Improving your quality of life and reducing angina and other CHD symptoms
- Allowing you to resume a more active lifestyle
- Improving the pumping action of your heart if it has been damaged by a heart attack
- Lowering the risk of a heart attack (in some patients, such as those who have diabetes)
- Improving your chance of survival