CVI
Complaints of chronic unilateral swelling, aching, and a sense of heaviness
postphlebitic syndrome/insufficiency
What is vein mapping used for?
Coronary artery bypass graft, LE bypass graft, and hemodialysis AV fistula
List 4 differences between acute and chronic DVT
echogenicity, vein size, attachment, texture borders, collaterals
The difference between the intraluminal pressure and tissue pressure is referred to
Transmural pressure
Upper extremity thrombus is more frequently caused by
injury to vein walls
How do you position a patient for deep and CVI evaluation
Deep- reverse Trendelenburg and CVI- standing
During vein mapping, we gather information about...
patency, position, size, and depth
What does CEAP stand for
Clinical Etiologic Anatomic Pathophysiologic
A vein that penetrates the muscular fascia of the leg and connects the superficial system to the deep system
perforating vein
A reported complaint from chemical ablation includes
skin ulceration
To optimize the time spent with a patient standing, which of the following should be examined first?
The most symptomatic thigh
A sustained flow signal in the GSV at the SFJ during a Valsalva maneuver is noted about the baseline. This would indicate what?
Venous reflux
Most COMMON site placement for VADs are
IJV AND SUBCLAVIAN VEINS
What is the communicating vein between the GSV and SSV
the vein of Giacomini
When positioning the thermal ablation deceive, it is optimal to be approximately how many cm distal from the deep system
2-4 cm
What is the difference between varicose veins and reticular veins
Varicose veins diameter greater than 3mm, Reticular veins diameter smaller than 3mm
What part of venous anatomy does the term Egyptian eye refer to?
The position of the GSV within the saphenous compartment
Name 2 potential complications of central venous access device placement.
Pneumothorax, AV malformation, infection
What two things are crucial to identify when diagnosing true thrombus
Non-compressibility, bright echogenicity
One week after a GSV ablation, the patient complains of shortness of breath and pleuritic chest pain. On US, you would expect to find?
Heat induced thrombus
A sustained flow signal in the GSV at the saphenous femoral junction during a Valsalva maneuver is noted above the baseline it would indicate
Venous reflux
During a US examination backflow in a superficial and deep vein before valve closure normal lasts
Superficial 500ms and deep 1000ms
Name 2 complications of VADs
Intimal damage, clotting, fistula formation, bleeding, air embolism, cardiac arrythmias
Thrombi are rare within the anterior tibial veins because
they do not communicate with the soleal veins.
What treatment heats the vein and eliminates the vein completely?
Radiofrequency ablation