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New Technology: Lithotripsy Balloon Catheter
Presented By: Shae Fender
News Source: Diagnostic and Interventional Cardiology
New Technology: Lithotripsy Balloon Catheter
http://www.dicardiology.com/article/shockwaves-lithoplasty-system-yields-positive-results
News Source: UCL Institute of Biomedical Engineering
http://www.ibme.ucl.ac.uk/external/shockwave-pad-balloon-catheters-lithotripsy-technology-ce-marked/view/
Peripheral Artery Disease
and Treatments
Previous Balloon Treatment for PAD
- Traditional balloon opens narrowed arteries
- Use a long, thin tube (catheter) with small balloon on its tip
- Balloon inflates at blockage in the artery to press plaque against artery wall
- Substantial pressure of balloon can cause damage to vessel wall and soft tissue
- leads to additional intervention
- Can be ineffective at treating deep calcification and plaque
Peripheral Artery Disease
- Peripheral artery disease (PAD)- narrowing of peripheral arteries in legs, stomach, arms, and head
- Caused by atherosclerosis-plaque builds up on artery wall hindering blood flow
- Plaque can rupture if becomes brittle or inflamed causing a blood clot
- Similar to coronary artery disease (CAD)
Shockwave PAD Balloon Catheter with Lithotripsy Technology
- Built similar to traditional balloon and similar procedure
- Tiny electrodes vibrate rapidly to break up calcified material and plaque
- Uses lithotripsy (breaks up plaque) before procedure
- Stresses plaque to be more pliable for balloon to shape vessel
- More pliable, less pressure = less chance of damage to vessel walls
Traditional Balloon catheter in coronary artery
Shockwave Medical Impact Beyond the Balloon
Discussion Questions
1. What is peripheral artery disease and how is it caused?
- Narrowing of peripheral arteries in legs, stomach, arms, and head caused by atherosclerosis
2. What specifically does Lithotripsy do to help aid in the efficacy of the balloon catheter?
- Breaks up and stresses plaque to be more pliable for balloon to shape vessel, lessening the chance of damage to vessel walls
3. There are no reported adverse effects from this procedure but could you see any downfalls that may present themselves further down the line?
- Open ended
Efficacy of Lithotripsy Balloon Catheter
- 35 patients with calcified stenosis (narrowing of artery) received treatment
- No residual stenosis after procedure in 100% of patients
- No acute failures or adverse effects experienced