LSA Reconstruction With Laser Fenestration During the TEVAR

Left Subclavian Artery Reconstruction With Laser-assisted Fenestration During the Procedure of Thoracic EndoVascular Aortic Repair for Type B Aortic Dissection

This study aims to evaluate the feasibility, effectiveness, and safety of in-situ laser-assisted fenestration on the left subclavian artery during the procedure of thoracic artery endovascular repair

This study is a single-arm, prospective study. All patients with type B aortic dissection (TBAD) present with the proximal tear site located approximately close to the left subclavian artery and a reconstruction of the left subclavian artery is necessary are included in the present study. During the procedure of thoracic artery endovascular repair (TEVAR), the left subclavian artery will be reconstructed with laser-assisted fenestration and the fenestrated stent will be covered stents (fluency, viabhan, lifestream).

Inclusion Criteria:

• Male or non-pregnant female over 18 years of age;
• Type B Aortic Dissection;
• The left subclavian artery should be reconstructed during the TEVAR procedure.
• Patient is willing to provide informed consent and comply with the required follow up visits, testing schedule and medication regimen;

Exclusion Criteria:

• Life expectancy of < 5 years;
• Patients need open surgery repair for the aortic diseases.