Ch. 11 Valves

Question 1

Mechanical Valve

Answer 1

last 20 years, but on coumadin (antagonize vit K factors II, VII, IX, X)

Question 2

Bioprosthetic

Answer 2

10-15% redo in 15 years, no coagulation

Question 3

Aortic vs Mitral size and flow

Answer 3

Aortic: 2.5-3.5 cm2, 250 ml/SEP/sec
Mitral: 4-6 cm2, 150 ml/DFP/sec

Question 4

Commissurotomy

Answer 4

cutting leaflets for repair

Question 5

Annuloplasty

Answer 5

ring replacement