Lower Extremity
What is an Endoleak?
Inadequate seal at the graft connection
What is the third branch of the aortic arch
The left subclavian artery
Name an inflow site of an AVF/ AVG.
Artery-
BrA, RA
Remember arteries bring blood away, veins bring blood back so the inflow is the artery bringing blood to the fistula.
What angle do you hold the CW transducer when performing Segmental Pressures?
45-60
This type of abnormal waveform usually indicates distal disease.
Staccato Waveform
What location does the CFA originate?
Inguinal Ligament
What is the branch of the left subclavian artery that supplies the brain?
The vertebral artery
An AVF is often created surgically how?
By connecting an artery and a vein, creating a high flow situation
Function manuevers such as the Adson's manuever is used to evaluate what?
Evaluate for Thoracic Outlet Syndrome (compression)
What is the term used for a ‘filling in’ of the clear window under the systolic peak.
Spectral Broadening
What type of graft would be put in if the patient has a distal aorta occlusion?
Aorto-Bi Femoral
Which artery do we typically see in the anetcubital fossa?
The Brachial Artery
What size do we want the radial artery to be for CABG?
> 2mm
Which test checks the patency of the palmer arch?
The Allen Test
Name the 6 P's. (Symptoms for acute arterial occlusion)
Pain, Pallor, Pulselessness, Paresthesia, Paralysis, Polar
If the patient has an Aortic obstruction, what level would we see abnormal PVR/Segmentals?
B/L High Thigh
Which artery typically feeds the superficial palmar arch?
The Ulnar Artery
Name 2 complications of an AVF/ AVG.
Stenosis, intimal hyperplasia, pseudoaneurysm, steal syndrome, infection
When performing a radial artery mapping exam, name 3 observations we look for:
Focal elevated PSV, intimal thickening, aneurysm, or calcification.
Name 3 contraindications for upper segmental PVR.
Calcified vessels (will falsely elevate pressures)
Patients with a clot
Ipsilateral side of an AVF/AVG
Ipsilateral side of a mastectomy
Pateints have extensive bandages or casts which cannot be removed
Blue toe syndrome is likely the result of:
A. Aortic Stenosis
B. Venous thrombosis
C. Brachial occlusion
D. Micro-emboli
D. Micro-emboli
Name the 5 branches off the SCA.
•Vertebral Artery
•Thyrocervical Trunk
•Costocervical Trunk
•Internal Mammary Artery
•Dorsal Scapular Artery
Is the cephalic vein on the lateral or medial aspect of the arm?
Lateral
A patient comes in for radial artery mapping, you obtain the following images, is this suitable for CABG? Why or why not?
No, PSV elevated suggest stenosis
Where is the most common location for Adventitial Cystic Disease to form?
Popliteal Artery