C1INH deficiency does not enhance arterial thrombosis in mice. Arterial thrombosis was assessed in C1inh+/+, C1inh+/−, and C1inh−/− mice using the carotid artery FeCl3 model under conditions resulting in either severe or mild injury. In the severe model induced with application of 8% FeCl3 for 3 minutes, (A) occlusion time and (B) carotid artery patency were evaluated. Similarly, in the mild model induced with application of 2.5% FeCl3 for 5 minutes, (C) occlusion time and (D) carotid artery patency were evaluated. Data are represented as individual values with median and analyzed using Kruskal-Wallis with post hoc Dunn or log-rank tests.