An Exploratory Study of Iliac Artery Branch Stent for Internal Iliac Artery Reconstruction in Abdominal Aortic Aneurysm/Iliac Aneurysm Repair

This study is a prospective observational exploratory cohort study without a control group. As a single-group target value validation study, the main evaluation indicator is the primary patency rate one year after surgery. As an exploratory study, considering the enrollment ability to facilitate data analysis, 40 subjects are enrolled in the final study, and 20 are expected to be included in each study. All enrolled patients will be followed for 12 months for CTA to assess primary patency. Telephone follow-up was conducted at 1, 3, 6, and 12 months for adverse events.

Inclusion criteria

• Patients with iliac aneurysms combined with or without abdominal aortic aneurysms and internal iliac arteries reconstructed with iliac branch stents;
• Male or female ≥18 years old, ≤85 years old;
• Life expectancy > 2 years;
• The patient signed the informed consent voluntarily and was able to comply with the treatment plan and complete the follow-up and examination as planned.

Exclusion criteria

• Fungal or ruptured aneurysm
• Known complications of thoracic aortic aneurysm require interventional treatment
• American Association of Anesthesiologists (ASA) Grade V
• Creatinine > 2.5mg/dL or dialysis patients
• NYHA Grade IV heart failure
• Intercalation, severe calcification, or anchoring area with thrombosis
• Severe curvature or narrowing of the iliac and/or femoral arteries, resulting in difficulty in stent delivery
• Conduct another device or drug study within 1 year of treatment
• Systemic infection
• Combined with connective tissue disease
• Known history of drug use
• Known allergies or allergies to equipment materials