Cardiopulmonary Bypass Flashcards
1
Q
Why causes flow variation in centrifugal CPB pump?
A
Changes in preload and afterload
2
Q
What are the risks of using roller pump flow?
A
1) Higher incidence of blood element destruction
2) Plastic micro emboli creation
3) Inflow/outflow obstructions
3
Q
True of false: both centrifugal and roller pump flow can be pulsatile?
A
True
4
Q
Most common indication for retrograde cardioplegia?
A
Aortic valve insufficiency
5
Q
Effect of CPB on tpa release from endothelium?
A
Increase release
6
Q
Centrifugal vs. roller pump: which are more likely to produce air emboli?
A
Roller pump
