CABG Diagram

Question 1

Where is the clamp placed for CPB

Answer 1

Ascending aorta

Question 2

What are the 5 cannulation used in CPB

Answer 2

#1 Arterial cannula ( aortic arch after the clamp before the innominate artery)
#2 Venous cannula (through the R atrial appendage into the inferior vena cava)
#3 Aortic Root Vent / antegrade cardioplegia cannula (inserts in the ascending aortic arch between the aortic root and the clamp
#4 Retrograde cardioplegia ( inserted into the R atrium)
#5 LV Vent ( inserts into the R superior Pulmonary vein)

Question 3

What are the 2 primary veins used for a CABG graft?

Answer 3

Saphanous and Left internal mammary artery

Question 4

The RCA turns into what on the back side of the heart

Answer 4

The posterior descending coronary artery

Question 5

The coronary sinus is located where

Answer 5

The Right atrium

Question 6

Trace the flow of CPB after clamping

Answer 6

Blood flows out the aortic root vent, the venous cannula and the LV vent cannula to the CPB machine, then it returns to the arterial cannula to circulate throughout the body

Question 7

Antegrade cardioplegia is infused into what part of the heart

Answer 7

Ascending aorta prior to the clamp

Question 8

Retrograde cardioplegia is infused into what part of the heart

Answer 8

The Right Atrium

Question 9

What vessel separated the right side of the heart from the Left side

Answer 9

LAD

Question 10

What vessel branches off the Left Main wraps around the posterior aspect of the heart and supplies the left atrium

Answer 10

Circumflex

Question 11

The circumflex branches off into 3 more arteries to supply the posterior aspect of the Left Ventrical

Answer 11

Obtuse marginal #1,#2,#3 or also called the (marginal)

Question 12

What is cardioplegia

Answer 12

The arresting of the heart by a hyperkalemic solution