Which of the following statements about coronary by-pass surgery is correct?
- AIt is carried out to reduce the effects of atherosclerosis, improving the delivery of oxygen and dissolved glucose to the cardiac muscle of the heart.
- BIt is the surgical removal of one or more coronary arteries to reduce the strain on the heart of a person with coronary heart disease.
- CSurgeons are able to divert blood around the diseased sections of the coronary arteries so that more oxygenated blood can be pumped round the systemic circulation.
- DThe diseased parts of the aorta are replaced by using a section of a main artery from elsewhere in the body of the same person, to avoid rejection.