Yang W, Wang G, Li H, et al. - Researchers conducted the study for comparing intraoperative bleeding and regional cerebral oxygenation in patients with different degrees of the reverse Trendelenburg position (RTP) during endoscopic sinus surgery (ESS). A total of 120 patients with chronic rhinosinusitis treated by ESS were randomly assigned to the following 4 groups: a horizontal position (HP) group, and 5°, 10°, and 15° RTP (5‐RTP, 10‐RTP, and 15‐RTP, respectively) groups. According to this prospective, randomized study, compared with HP, 5‐RTP, and 10‐RTP, 15-RTP during ESS will increase visual clarity, and the degree of RTP does not affect ScO₂. This research did not detect any cerebral deoxygenation or vital organ dysfunction. Therefore for ESS, 15‐RTP with moderate deliberate hypotension was recommend.