Spanos K, et al. - Researchers performed a two-center retrospective study of 825 patients who were subjected to endovascular aneurysm repair (EVAR) from 2006 to 2017, in order to investigate the presence of preoperative and postoperative factors that are associated with persistence of endoleak type II (ET II) during the initial 12-month follow-up period. Patients were categorized into two groups, resolution [group 1: 58 patients (41%)] vs persistence [group 2: 82 patients (59%)] of ET II at 12-month computed tomography angiography (CTA). They recognized ET II at 1-month CTA in 140 (17%) patients (mean age, 71.7 ± 8.5 years; 94% male). The only factor associated with persistence of ET II during the first year after EVAR was induced occlusion of the internal iliac artery during EVAR. ET II persistence seemed correlated with the presence and pattern of intraluminal thrombus, but not with the number of patent infrarenal aortic branches and their diameter as well as with the pelvic artery indices. ET II resolution seemed to be positively affected by the use of statins during the first postoperative year. Patients with ET II resolution showed regression of Sac diameter more frequently.