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Vascular > ESKD- Stents Home Study > Flashcards

ESKD- Stents Home Study Flashcards

1
Q

What is a stent?

A

metal or plasti tube inserted into the lumen of an anatomic vessel or duct to keep the passageway open

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2
Q

unlike covered stents, the best data for bare metal stents is __________.

A

level 3 data, not studied in AV access due to lack of clinical evidence

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3
Q

what is the biggest problem with bare metal stents?

A

in stent restenosis

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4
Q

PTA & BMS clinical takeaway

A
  • graft primary patency; 3 % to 23% (PTA), and 12% to 12% (BMS)

-access circuit priary patency; 25% to 63% (PTA), and 27% to 63% (BMS)

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5
Q

most stents placed if not all are _________.

A
  • self expanding stents
    -expands to pre-set diameters when exposed to body temperature
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6
Q

balloon expandable stent

A
  • compression resistence (radial hoop strength)
  • ability of the stent to withstand radial compressive force
  • accuracy
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7
Q

self- expanding stent (nitinol)

A
  • compression resistence (radial hoop strength)
  • radial force (chronic outward force)
  • the radial outward force the stent exerts in a constant attempt to achieve and maintan its nominal diameter
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8
Q

Stent designs

A
  • multiple strut rings connectedto form a long tube
  • various strut lengths
  • various strut connections designs
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9
Q

stent flared ends

A
  • common on BD stents
  • faster wall apposition
    -migration resistence
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10
Q

straight stent shave a higher risk of _________.

A

moving during deployment since they don’t have wall apposition

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11
Q

electropolishing

A
  • improve corrosion resistence
  • hopefully reduce intimal hyperplasia growth
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12
Q

coaxial catheter delivery system

A
  • 2 catheters that slide over eachother
  • BSC epic
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13
Q

triaxial catheter delivery system

A
  • three cathethers: a third outer sheath that isolates the two inner catheters
  • 5f lifestent bard
  • abbott absolute pro
  • MDT everflex
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14
Q

E-luminexx indication

A
  • commonly used in AV access but not indicated for this work
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15
Q

E- luminexx vascular stent

A
  • treatment of illiac occlusive disease
  • 7-10 mm diameters
  • 20-100 mm lengths
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16
Q

E-luminexx biliary stent

A
  • treatment of malignant stenosis in the biliary tree
  • 4-14 mm diameters
  • 20- 120 mm lengths
17
Q

common on a lot of bare metal stents, including venovo, the generational stent lock helps

A

the stent moving from deployment

18
Q

the E-luminexx has 3 radiopaque marker lines where?

A
  • 2 markers are at either end of the stent
  • 1 moving marker over the catheter itself when being deployed
19
Q

E-luminexx illiac clinical study

A

posterior probability: 99.24% that the 9 month MACE rate was < 25%

20
Q

E-luminexx PerforMAXX Grip deployment options

A
  • trigger method
  • side method
  • combination deployment
  • conventional method
21
Q

Lifestar Vascular stent

A
  • treatment of illiac occulusive disease
  • 7- 10 mm diameters
  • 20- 100 mm lengths
22
Q

Lifestar biliary stent

A
  • treatment of malignant stenosis in the biliary tree
  • 6- 14 mm diameters
  • 20- 120 mm lengths
23
Q

Cordis SMART stent

A
  • biliary, illiac, & SFA
  • 6F & 7F
  • 6 tantalum markers
  • no stent lock
  • handle with dial and slide
24
Q

Medtronic Protege GPS Biliary stent

A
  • biliary
  • 6F
  • 4 tantalum markers
  • EX PRT stent lock system
  • pin & pull deployment with ergonomic finger grips
25
Q

Medtronic Protege Everflex SFA Stent

A
  • biliary
  • 6F
  • 4 tantalum markers
  • EX PRT stent lock system
  • pin & pull deployment ergonomic finger grips
26
Q

Boston Scientific EPIC SE stent

A
  • common/ external illiac
  • 6 F
  • leveraging with mustang and gladiator
  • tantalum architecture with micro and macro struts
27
Q

Covera and Fluency are __________ Impregnated to decrease platelet accumulation

A

Carbon

28
Q

What does the Flared ends offer the MD during stent deployment: (select all that apply)

A
  • Faster Wall Apposition
  • Migration Resistance
29
Q

The E-Luminexx Stent Systems have the following total catheter lengths?

A

111cm, 166cm

30
Q

E-Luminexx & LifeStar Vascular Stent Systems are available 7-10 mm diameters and 20 – 100 mm lengths

A

True

31
Q

The E-Luminexx Stent Systems offers an operator how many deployment options

A

4

32
Q

E-Luminexx™ and LifeStar™ are based on the same stent platform:

A

true

33
Q

What Covered Stents does BD offer (select all that apply) :

A
  • covera
  • fluency
34
Q

Stenosis is the most common cause of vascular access failure and treatment, including frequent reinterventions, and is associated with an additional cost burden

A

True

35
Q

Bare Metal Stents have superior clinical date and patentcy rates over covered stents

A

False

Vascular (24 decks)

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