Helping the heart Flashcards
what do valves withstand
a lot of pressure
what may happen to valves over time
may become leaky, stiff, not open fully
what does it mean if you have a leaky valve
makes heart less efficient
what are the two type of valves you could use
animal valves or mechanical
positive of mechanical valves
last very long time but have to take medicine rest of life
positive of biological valves
patient doesn’t need to take meds but only last 12-15 years
where is the artificial pacemaker implanted
in chest
what happens if blood is pumped too slow
not enough oxygen
what if blood is pumped too fast
cannot pump blood properly
describe the natural pacemaker and where it found
controlled by group of cells which act as pacemaker in right atrium
what can artificial pacemaker correct
irregularities in the heart
what does the artificial heart do
keeps heart beating steadily but sometimes is not enough to restore health
when can artificial hearts be used
when heart fails completely, and transplant not available -> temporary hearts can support your heart until it can be replaced
