Coronaries + angio Flashcards
Outline basics L coronary
Coronaries sit under pericardium
Left main coronary
1) LAD
-> Septal branches (perfusing septum)
-> Diagonal branches (usually 2 perfusing anteriolateral segment)
-> Distal segment (apical)
2) L circumflex
->L atrial
-> Obtuse marginal (L marginal - usually 2)-
1 - Proximal perfusing anteriorlateral LV
2 - Inferiorlateral / posterior LV
Outline basics R coronary
Right coronary
1) Conus artery - perfuses RV outflow tract and anterior RV wall
2) SA nodal artery (in 60%)
3) R atrial branch
4) Acute (right) marginal (sometimes multiple branches perfusing RV)
5) AV nodal artery
Then bifurcates into
1) Right posteriorlateral artery (RPL) - inferiolateral/ posteriorlateral wall
2) Posterior descending artery (PDA) - Interventricular septum (posterior part)
Where does the ramus atery (common variant) come from?
L main in between LAD / OM1
Perfuses same as OM1 / high diagonal branches (Anteriolateral LV)
Where does SA nodal artery come from?
R coronary in 60%
L circumflex in most others
Where does AV nodal artery come from
Usually R coronary
L circumflex in some
What does dominance mean with regard to coronaries
Where posterior descending artery comes from (right or left)
3 options:
1) RPDA (most common) - R coronary
2) LPDA - L circumflex
3) Co-dominant due to anastamosis between both
Where do the coronary veins drain into? Other main coronary veins draining into this?
Coronary sinus ( posterior side of heart) -> drains into R atrium
Posterior side
1) Small cardiac vein (adjacent to acute (right) marginal)
2) Middle cardiac vein (adjacent to PDA) (RV)
3) Posterior cardiac vein (posterior ventricles)
Anterior side
1) Great cardiac vein -Adjacent to LAD - LV
2) Anterior vein (RA/RV - anterior segments)
Which cardiac vein doesn’t drain into coronary sinus
Anterior - directly into RA
Left (main) coronary artery (LCA, LMCA)
Left anterior descending artery (LAD)
First diagonal artery (D1)
First septal artery (S1)
Circumflex artery (LCx, Cx)
First (obtuse) marginal (M1)
7 Right coronary artery (RCA)
8 acute marginal artery (AM1)
9 Posterior descending artery (PDA)
10 Posterior left ventricular artery (PLV)
7 Right coronary artery (RCA)
8 First acute marginal artery (AM1)
9 Posterior descending artery (PDA)
10 Posterior left ventricular artery (PLV)
7 Right coronary artery (RCA)
8 First acute marginal artery (AM1)
9 Posterior descending artery (PDA)
10 Posterior left ventricular artery (PLV)
- Left (main) coronary artery (LCA, LMCA)
- Left anterior descending artery (LAD)
- First diagonal artery (D1)
- First septal artery (S1)
- Circumflex artery (LCx, Cx)
- Left (main) coronary artery (LCA, LMCA)
- Left anterior descending artery (LAD)
- First diagonal artery (D1)
- First septal artery (S1)
- Circumflex artery (LCx, Cx)
- Left (main) coronary artery (LCA, LMCA)
- Left anterior descending artery (LAD)
- First diagonal artery (D1)
- First septal artery (S1)
- Circumflex artery (LCx, Cx)