15-Year Age-stratified Outcomes after Endovascular and Open Abdominal Aortic Aneurysm Repair

Abstract

Introduction: Endovascular revascularisation strategies are becoming increasingly prevalent for more complex supra-and infrainguinal atherosclerotic lesions. Given this, this study performs a contemporary analysis of factors that predict outcomes in patients undergoing surgical lower limb revascularisation. Methods: We analysed a consecutive series of patients having open surgical lower limb revascularisation over the course of 24 months. Patients were followed up for 24-36 months. Data was collated on demographics, comorbidity, and type of surgery. The primary outcome measure was one year mortality. Secondary outcomes were major in-hospital events, ICU admission, and surgical re-intervention. Multivariate analysis was performed to determine significance. Results: A total of 275 patients (208 men, median age 70 years) formed the cohort. The one year mortality rate was 7.27%. On multivariate analysis, pre-op diagnosis OR 0.346 (95% CI: 0.133-0.903, p ¼ 0.030), haemoglobin OR 1.030 (95% CI: 1.004-1.056, p ¼0.025) and a diagnosis of diabetes mellitus OR 9.226 (1.805-12.172, p¼0.008) were predictive of one year mortality. Major in-hospital events occurred in 16.2% of patients.