Cannulations

Question 1

Single, Duel, triple stage cannulas used for?

Answer 1

Anything where you don’t need to go on the right side of the heart. I.e. repairing tricuspid valve pulmonary valve. It sits in the RA. If you used it in this case you would have nothing but air bc the RA is wide open

Question 2

In coronaries, dissection, aortic valve require what type of cannulation?

Answer 2

Single, Duel, triple stage (all of these are on left side of the heart)

Question 3

Bicaval cannulation is used when?

Answer 3

When working on right side of the heart or if moving heart a lot like a mitral valve replacement they may use it to get better return

Question 4

Axillary cannulation used when?

Answer 4

When problem suspected with aorta/aortic root

Question 5

Arterial you don’t want more than a _____mm gradient between line pressure and patient pressure at a flow of ___ L/Min

Answer 5

100mm
5 L
(look at a graph)

Question 6

Why is IVC bigger than SVC?

Answer 6

More return coming back from lower extremities

Question 7

Gravity matters in venous system in determining what size cannula T/F?

Answer 7

True

Question 8

3-4kg baby with flow somewhere 800-900 cc what size approx in SVC/IVC?

Answer 8

12 Fr in SVC

14 Fr in IVC

Question 9

LV vent is placed in the_______

Answer 9

Right superior pulmonary vein

Question 10

Partial bypass may require a ______, why?

Answer 10

Vent

Because, you want to prevent distention

Question 11

Most common type of cannula?

Answer 11

Duel stage