helping the heart function

Question 1

leaky valves treatment

Answer 1

leaky heart valves can be replaced with a biological valve from a human donor or made from animal tissue from a pig or cow. or with a mechanical valve made from strong, durable materials

Question 2

advantages of mechanical valves

Answer 2

Mechanical valves last longer, easier surgery than whole heart transplant, patient has choice of valves

Question 3

disadvantages of mechanical valves

Answer 3

blood can clot on them. A patient may need long-term medication that prevents blood clots developing. Biological valves are more likely to wear out.

Question 4

advantages of biological valves

Answer 4

cheaper, no medication needed, quicker operation

Question 5

disadvantages of biological valves

Answer 5

more likely to wear out, new procedure = unknown risks, made from cows = objections from religious grounds

Question 6

what is an artificial pace maker?

Answer 6

a medical device that uses electrical impulses to regulate heart beats