Vertebral Artery Origin Stent Placement Using the Dual Lumen Qureshi-Jiao Guidecatheter

Area of Science:

• Interventional Cardiology
• Vascular Surgery
• Medical Device Technology

Background:

• Vertebral artery origin stenosis poses a significant risk for stroke.
• Current treatment options may be limited by anatomical challenges.
• A novel dual lumen guide catheter has been developed to address these challenges.

Purpose of the Study:

• To evaluate the feasibility and performance of a new dual lumen guide catheter for treating vertebral artery origin stenosis.
• To assess technical success, procedural ease, and clinical outcomes in patients undergoing stenting.

Main Methods:

• A prospective study involving four patients with symptomatic vertebral artery origin stenosis.
• Utilized a new dual lumen guide catheter with a curved tip for stent delivery and a side exit port for wire placement.
• Classified vertebral artery origins into type A (ascending segment) and type B (arch/horizontal segment).

Main Results:

• All four procedures achieved technical success and technical ease.
• Mean patient age was 66.2 years, with a mean stenosis of 82.7%.
• Post-procedure residual stenosis was significantly reduced to a mean of 6%.

Conclusions:

• The dual lumen guide catheter is feasible for stent placement in vertebral artery origin stenosis.
• The catheter demonstrated superior performance compared to previous methods.
• This technology offers a promising solution for complex vertebral artery interventions.