OCLN and intracranial hemorrhage: Compared with patients with a postoperative serum occludin level < 3.033 ng/mL (the optimal cutoff value), those with an occludin level ≥ 3.033 ng/mL had a significantly higher incidence of severe pericavity edema at 1 day after surgery (90.9% vs. 18.2%; P < 0.001) but a similar NIHSS score (6.82 ± 6.64 vs. 4.52 ± 6.66; P = 0.306), GCS score (13.55 ± 2.07 vs. 14.09 ± 1.09; P = 0.407), and incidence of intracranial hemorrhage (27.3% vs. 18.2%; P = 0.800) at 1 day after surgery (Figures 5(c) and 5(d)).