Question

Coronary bypass surgery is undoubtedly a very significant achievement of modern medical

science. But one ponders over certain pertinent question such as the cost involved and the ultimate

benefit.

The human heart is nothing but a four-chambered muscular pump which supplies blood to all

parts of the body. Being an active pump, the heart itself requires a lot of energy and receives its

own blood supply via certain vessels called coronary arteries. By a process called

‘atherosclerosis’, fat particles are deposited on the inner wall of the lumen of the coronary arteries

which eventually reduce the size of the lumen and produce obstruction to the free flow of blood.

The portion of the heart which suffers from lack of blood supply becomes weaker as a pump and

gives rise to a typical chest pain called ‘angina’. When such blockage is total, the corresponding

heart muscle dies and then one suffers a “heart attack”. In all these circumstances, heart surgeons

perform a special type of operation known as ‘coronary bypass surgery’.

In this surgery a blood vessel is taken (usually from the leg of the patient) and then grafted on

the heart in such a way that when blood flows through, it bypasses the narrow segment of the

diseased coronary artery. The concept is to divert the flow from the narrow artery, inside which

there is already a ‘traffic congestion’ and in this respect it is synonymous to road bypass.





( write the summary writing) ​

Answer 1

Answer:

limite your questions and limit your words ok

Answer 2

Answer:

Coronary bypass surgery, which is an achievement of modern science, is undoubtedly very significant.

A special type of operation is performed by the heart surgeons