Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710033, China;
Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710033, China;
Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710033, China;
Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710033, China;
Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710033, China;
craniocerebral surgery; PaCO2; jugular venous bulb oxygen saturation; cerebral oxygen consumption;