Migration of the AVE Micro coronary stent

Area of Science:

• Interventional Cardiology
• Biomedical Engineering
• Vascular Devices

Background:

• The AVE Micro coronary stent offers a unique design for improved deliverability in complex coronary anatomy.
• Its low-profile, trackable delivery system facilitates navigation through tortuous vessels and previously placed stents.
• Moderate radioopacity aids in precise placement of the coronary stent.

Observation:

• Three case reports detail instances where the AVE Micro stent's struts appeared inadequately embedded in the arterial wall post-deployment.
• This lack of firm embedding was noted during the passage of a balloon catheter for post-stenting high-pressure dilatation.

Findings:

• A novel phenomenon of coronary stent migration was observed with the AVE Micro stent.
• This migration occurred specifically during post-stenting balloon dilatation procedures.
• The underlying cause appears to be insufficient initial embedding of the stent struts into the vessel wall.

Implications:

• The findings suggest a potential risk of stent migration with the AVE Micro coronary stent, distinct from other stent designs.
• Further investigation into the stent's deployment mechanism and arterial wall interaction is warranted.
• Clinical vigilance is advised during post-deployment procedures to mitigate risks associated with this specific stent migration phenomenon.