ESKD- Stents Home Study Flashcards
What is a stent?
metal or plasti tube inserted into the lumen of an anatomic vessel or duct to keep the passageway open
unlike covered stents, the best data for bare metal stents is __________.
level 3 data, not studied in AV access due to lack of clinical evidence
what is the biggest problem with bare metal stents?
in stent restenosis
PTA & BMS clinical takeaway
- 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)
most stents placed if not all are _________.
- self expanding stents
-expands to pre-set diameters when exposed to body temperature
balloon expandable stent
- compression resistence (radial hoop strength)
- ability of the stent to withstand radial compressive force
- accuracy
self- expanding stent (nitinol)
- 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
Stent designs
- multiple strut rings connectedto form a long tube
- various strut lengths
- various strut connections designs
stent flared ends
- common on BD stents
- faster wall apposition
-migration resistence
straight stent shave a higher risk of _________.
moving during deployment since they don’t have wall apposition
electropolishing
- improve corrosion resistence
- hopefully reduce intimal hyperplasia growth
coaxial catheter delivery system
- 2 catheters that slide over eachother
- BSC epic
triaxial catheter delivery system
- three cathethers: a third outer sheath that isolates the two inner catheters
- 5f lifestent bard
- abbott absolute pro
- MDT everflex
E-luminexx indication
- commonly used in AV access but not indicated for this work
E- luminexx vascular stent
- treatment of illiac occlusive disease
- 7-10 mm diameters
- 20-100 mm lengths
E-luminexx biliary stent
- treatment of malignant stenosis in the biliary tree
- 4-14 mm diameters
- 20- 120 mm lengths
common on a lot of bare metal stents, including venovo, the generational stent lock helps
the stent moving from deployment
the E-luminexx has 3 radiopaque marker lines where?
- 2 markers are at either end of the stent
- 1 moving marker over the catheter itself when being deployed
E-luminexx illiac clinical study
posterior probability: 99.24% that the 9 month MACE rate was < 25%
E-luminexx PerforMAXX Grip deployment options
- trigger method
- side method
- combination deployment
- conventional method
Lifestar Vascular stent
- treatment of illiac occulusive disease
- 7- 10 mm diameters
- 20- 100 mm lengths
Lifestar biliary stent
- treatment of malignant stenosis in the biliary tree
- 6- 14 mm diameters
- 20- 120 mm lengths
Cordis SMART stent
- biliary, illiac, & SFA
- 6F & 7F
- 6 tantalum markers
- no stent lock
- handle with dial and slide
Medtronic Protege GPS Biliary stent
- biliary
- 6F
- 4 tantalum markers
- EX PRT stent lock system
- pin & pull deployment with ergonomic finger grips
Medtronic Protege Everflex SFA Stent
- biliary
- 6F
- 4 tantalum markers
- EX PRT stent lock system
- pin & pull deployment ergonomic finger grips
Boston Scientific EPIC SE stent
- common/ external illiac
- 6 F
- leveraging with mustang and gladiator
- tantalum architecture with micro and macro struts
Covera and Fluency are __________ Impregnated to decrease platelet accumulation
Carbon
What does the Flared ends offer the MD during stent deployment: (select all that apply)
- Faster Wall Apposition
- Migration Resistance
The E-Luminexx Stent Systems have the following total catheter lengths?
111cm, 166cm
E-Luminexx & LifeStar Vascular Stent Systems are available 7-10 mm diameters and 20 – 100 mm lengths
True
The E-Luminexx Stent Systems offers an operator how many deployment options
4
E-Luminexx™ and LifeStar™ are based on the same stent platform:
true
What Covered Stents does BD offer (select all that apply) :
- covera
- fluency
Stenosis is the most common cause of vascular access failure and treatment, including frequent reinterventions, and is associated with an additional cost burden
True
Bare Metal Stents have superior clinical date and patentcy rates over covered stents
False
