B4 helping the heart Flashcards

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1
Q

stents

A

solve CHD
holds blood vessel open
used to open up blocked artery, to ensure blood flow
release drugs to prevent blood clots

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2
Q

statins

A

help for people at risk of cdv disease
reduce blood cholesterol, alters balance of it
slows down rate at which fatty material is deposited in coronary arteries ( fatty build up caused by LDL cholesterol)
increase HDL (good) cholesterol to get rid of fatty deposits
decease LDL (bad) cholesterol

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3
Q

leaky valves

A

heart valves may not open fully over time/ leak / stiffen - reduces efficiency
mechanical valves replace these
biological valves taken from pigs or cattle last 12-15 years

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4
Q

dsvtg of mechanical valves

A

require surgery ( has risks)
take medicine for rest of life to prevent blood clotting

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5
Q

pacemaker

A

natural pacemaker in right atrium of heart
heart beats too slowly -> not enough oxygen
too quickly -> cannot pump blood properly

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6
Q

artificial pacemaker

A

corrects irregularities in heart rate
attached to heart by two wires
sends electrical signals to stimulate heart to beat properly
need regular check ups throughout life

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7
Q

artificial hearts

A

transplants can take too long - need to find tissue match
won’t be rejected by body
risk of blood clotting
used to give diseased hearts a rest to recover
resources and cost means AH aren’t widely used

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8
Q

benefit of stent

A

surgery is relatively quick
effective for a long time

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9
Q

issues of stents

A

surgery has risks
could induce heart attack
possibly lead to infection
patient could later develop bloody clot near stent

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10
Q

downside of statins

A
  • medicine so needs to be taken regularly
  • has side effects
    eg, head aches, kidney failure
    can take a long time to see positive effects
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11
Q

issues of biological heart transplant

A

surgery is complicated
takes a long time to find donor
could be rejected and destroyed by body

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