Delayed carotid wallstent shortening

Area of Science:

• Vascular Surgery
• Interventional Cardiology
• Medical Device Complications

Background:

• Carotid angioplasty and stenting (CAS) is a safe alternative to surgery for carotid artery disease.
• Stent malpositioning, including proximal or distal slipping, can occur during CAS procedures.
• These malpositions may necessitate the placement of additional stents.

Purpose of the Study:

• To report a rare case of delayed carotid stent dislocation occurring one year post-procedure.
• To highlight the importance of considering delayed displacement as a potential complication of CAS.
• To emphasize the need for long-term follow-up after CAS.

Main Methods:

• Case report describing a patient who experienced delayed carotid stent dislocation.
• Utilized ultrasound to monitor stent position post-procedure.
• Managed restenosis caused by proximal stent dislocation by placing an additional stent distally.

Main Results:

• A carotid stent dislocated proximally one year after initial placement, leading to severe restenosis.
• The dislocation was successfully managed by deploying a second stent in a more distal position.
• Initial ultrasound confirmed correct stent placement, but a later scan revealed the complication.

Conclusions:

• Delayed displacement of carotid stents is a rare complication but must be considered in preoperative planning.
• Carotid Wallstent shortening during implant may occur due to placement or sizing issues.
• Close, long-term ultrasound follow-up is recommended after CAS to detect unforeseen complications.