Impact of Different Pneumoperitoneum Pressures on Internal Carotid Artery Blood Flow and Cerebral Oxygenation in Laparoscopic Sleeve Gastrectomy

Abstract Background High intra-abdominal pressure (IAP) during bariatric surgery may compromise cerebral perfusion. This study evaluates the impact of 12 vs. 16 mmHg pneumoperitoneum on internal carotid artery (ICA) hemodynamics and cerebral oxygenation (rSO 2 ) in patients with severe obesity undergoing laparoscopic sleeve gastrectomy (LSG). Methods In this prospective, randomized, double-blind study, 67 patients undergoing LSG were allocated into two groups: Group 12 (12 mmHg, n = 34) and Grou