Aortic dissection: percutaneous management with a separating stent-graft--preliminary results

Area of Science:

• Cardiovascular Surgery
• Vascular Endovascular Therapy
• Medical Device Innovation

Background:

• Stanford type B aortic dissection presents significant treatment challenges.
• Current management often involves invasive procedures and strict hemodynamic control.
• There is a need for less invasive and effective treatment options.

Purpose of the Study:

• To evaluate the efficacy and safety of a novel separating stent-graft for treating Stanford type B aortic dissection.
• To assess the rate of false-lumen thrombosis following the intervention.
• To determine the advantages of this technique over conventional methods.

Main Methods:

• A separating stent-graft, comprising a stent-graft and an inner bare stent, was utilized.
• The device features a proximal stent, a synthetic polyester textile fiber graft, and a distal stent.
• A 12-F introducing sheath facilitated the endovascular placement.

Main Results:

• The separating stent-graft was successfully placed in six patients with Stanford type B aortic dissection.
• False-lumen thrombosis was observed in all six patients during the follow-up period.
• The mean follow-up duration was 206 days.
• Key advantages included the absence of a requirement for surgical cutdown and intensive blood pressure management.

Conclusions:

• The separating stent-graft is a promising endovascular solution for Stanford type B aortic dissection.
• The technique demonstrates high efficacy in achieving false-lumen thrombosis.
• Its minimally invasive nature offers significant advantages, potentially improving patient outcomes and reducing procedural complexity.