The effects of permissive hypercapnia on regional cerebral oxygen saturation and postoperative delirium in obese patients undergoing laparoscopic bariatric surgery: a randomized controlled trial

Permissive hypercapnia can enhance cerebral oxygenation and decrease postoperative S100β protein levels in obese patients undergoing laparoscopic sleeve gastrectomy, which is beneficial for reducing the incidence of postoperative delirium.