I-gel Laryngeal Mask Airway Combined with Tracheal Intubation Attenuate Systemic Stress Response in Patients Undergoing Posterior Fossa Surgery

Figure 4

Changes in plasma β-EP and Cor concentrations and BG in patients with a tracheal tube intubation (Group TT) or an I-gel facilitated endotracheal tube intubation (Group TI) during the study. Results are expressed as Mean ± SD. Mean concentration was lower during intraoperative period than at baseline in both groups (). They began to rise during emergence, and the Cor concentration even higher than that of baseline (Group TT, ; Group TI, ). The percent increase tended to be higher in Group TT (). Baseline (T0); before anesthetic induction (T1); 3 min after intubation (T3); after patients entered the PACU (T5); and throughout emergence from anesthesia at 1 minute after extubation or I-gel removal (according to group assignment) (T6).

(a)

(b)

(c)