SIR 2024
Arterial Interventions and Peripheral Arterial Disease (PAD)
Davy C. Vanderweyen, MD
Resident
CHU de Sherbrooke, Canada
Financial relationships: Full list of relationships is listed on the CME information page.
Marc Antoine Despatis, MD
Vascular surgeon
CHU de Sherbrooke, Canada
Disclosure information not submitted.
Gerald Gahide, MD
MD, PhD
Hopital Universitaire de Sherbrooke, Canada
Disclosure information not submitted.
309 patients were included in this study. Mean follow-up time was 3.7+/-3 years. ROC analysis yielded a protrusion threshold value of 2.3mm. A protrusion superior to 2.3mm was significantly associated with a higher risk of restenosis (25.5% versus 14.7%; p= 0.02) at follow-up. The hazard ratio for developing a restenosis with a protrusion >2.3mm was 1.73 (p=0.04) using a univariate analysis. No demographic data nor cardiovascular risk factors were statistically different between the two groups, except for diabetes which was more prevalent in the group with a protrusion < 2.3mm (p= 0.02). Univariate and multivariate Cox analyses did not show any significant impact of confounding factors.
Conclusion: Common iliac artery stents protruding more than 2 mm into the aorta are associated with a significantly lower primary patency rate at 3.7 years of follow-up.