A Novel Single-Branched Stent-Graft System for Aortic Dissection Involving the Aortic Arch

Area of Science:

• Vascular Surgery
• Endovascular Interventions
• Cardiovascular Research

Background:

• Aortic arch pathologies require advanced endovascular solutions.
• The Super-Channel (SC) stent-graft system is a novel device designed for complex aortic arch repairs.

Purpose of the Study:

• To report the first-in-human experiences and early clinical outcomes of the SC stent-graft system.
• To evaluate the safety and efficacy of the SC system in patients with aortic arch pathologies.

Main Methods:

• The SC system features a modular design with a pre-fenestrated main stent-graft and a bridging covered stent.
• It includes a preloaded catheter for supra-aortic cannulation and a pre-curved delivery system for accurate alignment.
• These features aim to facilitate efficient reconstruction of supra-aortic branches during aortic arch repair.

Main Results:

• The study included 10 patients with type B aortic dissections.
• Technical success was achieved in all patients, defined by accurate deployment, complete exclusion of pathology, stent-graft patency, and absence of early endoleaks.
• No major complications, including death, stroke, or paraplegia, were observed during the early follow-up.

Conclusions:

• The Super-Channel system presents a potentially safe and effective option for single-branch revascularization in endovascular aortic repair.
• Further investigation and caution are advised for its routine application due to limited long-term outcome data.