Wall segments and coronary artery perfusion Flashcards
Do the LCA and RCA arise from the superior or inferior aspect of their respective sinuses?
Superior
What coronary artery does the RCA divide into?
R posterior descending artery and a marginal branch
What CA perfuses the anterior portion of the R ventricle?
LAD
What CA perfuses the basal inferoseptal and inferior wall segments?
RCA
What does the RCA supply?
Inferior and posterior and RV free wall
What does the LAD supply?
Anterior, septum, and apex
What does the L Cx supply?
Lateral and posterior (anterolateral and inferolateral segments)
What wall is the posterobasal ventricular septum?
Inferoseptal
What wall is the posterobasal wall?
Inferior
What wall is the posterobasal lateral wall?
Inferolateral
What coronary artery perfuses the apex?
LAD
What is the term for lack of blood perfusion?
Ischemia
How to obtain AP4?
4th to 5th intercostal space with indicator at 3 o’clock
What coronary arteries or artery perfuses the infero-lateral segment?
RCA and L Cx
What coronary artery or arteries perfuse the infero-septal segment?
RCA and LAD
At what level of what anatomy is the basal, mid, and apical levels?
Basal = MV level
Mid = PM level
Apical = apex level
What is the best assessment of CAD?
Coronary angiography
What coronary artery does the L Cx give rise to in a L dominant patient?
Posterior descending artery
What coronary artery perfuses the posteromedial PM?
RCA
What coronary artery perfuses the anterolateral PM?
All of them
Hypokinesis
Reduced amplitude and velocity of endocardial motion and wall thickening in systole (<5mm) causing a DELAY in the onset of contraction and relaxation
Akinesis
Absence of inward endocardial motion or wall thickening in systole (<2mm)
Dyskinesis
Outward bulging of the wall segment in systole and is associated with thin or scarred myocardium
What wall motion abnormality occurs with a thin, scarred myocardium?
Dyskinesis
Aneurysmal
Diastolic contour abnormality with dyskinesis
What type of wall abnormality occurs in ischemia?
Hypokinesis - delay in the onset of contraction and relaxation