Prosthetic valves

Question 1

3 potential reasons midline sternotomy scar

Answer 1

CABG
aortic valve replacement
mitral valve replacement

Question 2

2 types of valves and lifespan

Answer 2

mechanical - 20yrs but need warfarin

biosynthetic (pig) 10yrs

Question 3

some examples of mechanical heart valves

Answer 3

starr-edwards
tilting disc
st Jude

Question 4

complications of mechanical heart valves

Answer 4

thrombus
infective endocarditis
haemolysis

Question 5

treatment for severe aortic stenosis

Answer 5

transcatheter aortic valve implantation (TAVI)

Question 6

TAVI

Answer 6

catheter in femoral artery, x-ray guidance then balloon stretch valve and implant new valve

Question 7

what % get infective endocarditis?

Answer 7

2.5

Question 8

causative organisms for infective endocarditis

Answer 8

staph
strep
enterococcus