Cardioplegia Flashcards
1
Q
Retrograde cardioplegia pressure
A
20-40 mmHg
2
Q
Antegrade cardioplegia pressure
A
80s (usual MAPs)
3
Q
Top 3 issues for low retrograde pressure
A
1) Dislodged
2) Burst balloon
3) Coronary Sinus Rupture
4
Q
Three principles for cardaic protection
A
1) Cardiac arrest
2) Hypothermia
3) Empty heart
5
Q
Example de-airing process
A
1) Head down
2) Fill heart
3) Ventilate
(all while root vent is high)
6
Q
Defib Joule amount (intra and extra thoracic)
A
Intra: 15 - 20J
Extra: 150 - 200J
7
Q
What is the role of magnesium
A
Reduce calcium influx to avoid “stone heart”
