Vascular Access and Closure Devices Flashcards

What is the standard landmark for femoral arterial access using the modified Seldinger technique?

Answer: Over the femoral head at the mid-inguinal point

The optimal femoral arterial puncture site is over the femoral head at the mid-inguinal point to allow effective manual compression and reduce hematoma risk.

Which complication is most associated with a high femoral arterial puncture above the inguinal ligament?

Answer: Retroperitoneal hematoma

High femoral puncture above the inguinal ligament can lead to retroperitoneal hematoma because the vessel cannot be compressed against the femoral head.

What is the primary advantage of transradial access over transfemoral access for cardiac catheterization?

Answer: Reduced vascular access site complications and earlier ambulation

Transradial access significantly reduces access site bleeding complications and allows patients to ambulate immediately after the procedure.

The Allen test is performed before radial artery access primarily to assess:

Answer: Collateral ulnar circulation to the hand

The Allen test evaluates ulnar collateral blood flow to ensure adequate hand perfusion if radial artery occlusion occurs post-procedure.

Which vascular closure device uses a collagen plug deployed into the arteriotomy site to achieve hemostasis?

Answer: AngioSeal

AngioSeal uses an intravascular anchor and collagen plug system to mechanically seal the arteriotomy at the femoral access site.

What minimum sheath size is typically required to deploy most vascular closure devices at the femoral access site?

Answer: 6 French

Most vascular closure devices are designed for 6 French or larger arteriotomies to ensure adequate deployment and effective sealing.