Latz CA, Boitano L, Schwartz S, et al. - The 30 day mortality of elective open complex abdominal aortic aneurysm (cAAA) repair was evaluated and factors linked with death were sought. Researchers used a Targeted Vascular Module from the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) to conduct this retrospective cohort study of the 957 patients who underwent an elective open cAAA repair from 2011 to 2017. Over the study period, death of 65 (6.8%) patients was reported. Observations revealed the 30 day mortality of 4.6% for juxtarenal AAA, 9.5% for suprarenal AAA, and 14.7% for type IV thoraco-abdominal aneurysms. The odds of 30 day mortality were nearly nearly twice for the open repair compared with that of endovascular repair for cAAA. Following were identified to be independently linked with death: BMI < 18.5, more severe CKD level, more proximally extending aneurysm, age, and history of advanced COPD.