Cardiac Stents Flashcards
What are Bare-Metal Stents (BMS)?
Simple metallic scaffolds used to open a blocked artery
BMS have a higher chance of restenosis.
What is the DAPT duration recommended for Bare-Metal Stents (BMS)?
Minimum of 1 month
Shorter DAPT is sufficient due to lower risk of restenosis.
What are Drug-Eluting Stents (DES)?
Coated with drugs to inhibit cell proliferation, reducing restenosis risk
DES require longer DAPT due to delayed vessel healing.
What is the DAPT duration recommended for Drug-Eluting Stents (DES)?
12 months or longer
Prolonged DAPT is needed due to higher thrombosis risk.
What is the hemodynamic goal for Aortic Stenosis (AS)?
Balance pressure/flow across the stenotic valve and maintain cardiac output without excessive pressure
Preload should be maintained or slightly increased.
What should be the heart rate target for Aortic Stenosis (AS)?
Maintain slow-to-normal for optimal diastolic filling
This helps in managing cardiac output.
What is the hemodynamic goal for Aortic Regurgitation (AR)?
Reduce regurgitant volume and maintain forward stroke volume
Preload should be maintained or slightly reduced.
What medications are used to manage Aortic Stenosis (AS)?
- Beta-Blockers (e.g., Metoprolol)
- Diuretics (e.g., Furosemide)
These help maintain heart rate and reduce preload respectively.
What is the MOA of Beta-Blockers in Aortic Stenosis (AS) management?
Reduces heart rate and oxygen demand
This aids in maintaining a slow heart rate.
What is the target for contractility in Aortic Stenosis (AS) management?
Maintain or increase
This is crucial for effective cardiac output.
What medications are used to manage Aortic Regurgitation (AR)?
- ACE Inhibitors (e.g., Lisinopril)
- Calcium Channel Blockers (e.g., Nifedipine)
- Beta-Blockers
Each has specific roles in reducing afterload and managing heart rate.
What is the goal of ACE Inhibitors in Aortic Regurgitation (AR) management?
Decrease afterload, improve forward flow, and reduce regurgitant fraction
This helps enhance stroke volume.
True or False: In Aortic Regurgitation (AR), a faster heart rate is preferred.
True
A faster rate reduces diastolic filling time and regurgitation.
What is the primary goal of management in Aortic Stenosis (AS)?
Avoid excessive reduction of afterload
Maintaining higher systemic vascular resistance is important.
Fill in the blank: In Aortic Regurgitation (AR), preload should be ______.
maintained or slightly reduced
