Double-wire technique in balloon-protected carotid artery stenting

Area of Science:

• Vascular Surgery
• Interventional Cardiology
• Medical Device Technology

Background:

• Carotid artery stenting (CAS) is a crucial procedure for stroke prevention.
• Distal occlusion balloon systems aim to minimize embolic events during CAS.
• Optimizing procedural efficiency and safety remains a key focus in CAS.

Purpose of the Study:

• To evaluate the safety and efficacy of a novel "double-wire technique" for balloon-protected CAS.
• To assess the performance of the PercuSurge GuardWire system with this technique.
• To determine the impact of the double-wire technique on cerebral blood flow occlusion time.

Main Methods:

• A prospective study involving 51 patients with 53 de novo carotid artery lesions.
• Implementation of the "double-wire technique" utilizing one wire for predilatation and another for stent implantation.
• Use of the PercuSurge GuardWire distal occlusion balloon system during the procedure.

Main Results:

• Technical success was achieved in all 50 treated lesions.
• Cerebral blood flow occlusion time averaged 266 +/- 37 seconds, with 90% of procedures under 300 seconds.
• Low rates of neurological intolerance (7.7%) and periprocedural complications (3.8%) were observed.

Conclusions:

• The double-wire technique is a safe and effective approach for balloon-protected CAS.
• This technique successfully shortens occlusion time, leading to favorable technical and clinical results.
• The double-wire technique using the PercuSurge GuardWire is recommended for consideration in CAS procedures.