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What is coronary baloon angioplasty?
Catheter placed down to lesion in coronary artery and baloon inflated to reduce narrowing
What is the chance for restenosis?
General indications for PCI?
- - Stable ungina with aid of Positive ETT
- - Unstable angina
- - Acute MI
- - After MI
- - Following CABG
What is AHA classification for Class I PCI?
Conditions indicating that procedure/treatment will be useful and effective
What is AHA classification for Class III PCI?
Evidence suggests procedure/treatment is not useful and may cause harm
Why use a guide catheter instead of a diagnostic catheter?
- - Larger lumen for baloons and stents
- - Radio-opaue tip
- - Reinforced tip with a mesh support
Why might an "over the wire" balloon be used instead of a "monorail" balloon?
- - Used in chronic total occlusions
- - Provides greater strength for crossing the lesion
Name one con about "over the wire" balloons
May lose guidewire when pulling the balloon out, resulting in loss of access
How is monorail ballooning formed?
Guide wire passes through the balloon itself, exiting the catheter proximal to the balloon
What are the two types of stent?
Bare metal stent and drug eluting stent
What does a DES do?
Inhibits cell growth, allowing vessle to maintain its patency
Who are considered for DES?
- Vessel <3mm in diameter
- Lesion >15mm
- Increased risk of stenosis
Name 2 DES drugs:
- Cypher (Sirolimus)
- Taxus (Taxol)
- Dexamet (Dexamethsone)
- Janus Carbostent (Tacrolimus)
When would restenosis occur post PCI?