The Application Of I-gel Laryngeal Mask General Anesthesia Combined With Tracheal Catheter In Gerontal Patients With Thoracolumbar Operation In Prone Position

Objective:To investigate the clinical effect and security of applications of I-gel laryngeal mask general anesthesia combined with tracheal catheter in gerontal patients with thoracolumbar operation in prone position.Methods:60 patients (age≥65) in department of orthopedics who will have thoracolumbar operation in prone position would be chosen and divided into the group of I-gel laryngeal mask combined with tracheal catheter (Group IT) and of tracheal catheter (Group T) randomly. MAP, HR, SpO2, and the concentration of blood glucose and plasma cortisol were observed and recorded at the time of TO (before the induction of anesthesia), T1 (insert tracheal catheter), T2 (pull out laryngeal mask or tracheal catheter), T3 (5minutes after T2). Ppeak、PETCO2 were recorded at the time of T4 (5 min after the trachelal catheter implanted in the patients in each group in the position of supine), T5 (30 min after operation in prone position) and T6 (at the end of operation in prone position).Results:HR and MAP, which in the patients in group T at T1 and T2, were significantly higher than that in group IT (P<0.05). Compared with blood glucose and plasma cortisol levels at T0, the levels in the two groups of patients at T1, T2, T3 were increased at different degree. The plasma cortisol levels, which in the patients in group IT at T1, T2, T3 were significantly lower than that in group T, and the difference had statistical significance (P<0.05). The Ppeak, which in the patients in group IT at T4, T5, T6 were significantly higher than that in group T, and the difference had statistical significance (P<0.01).Conclusion:The use of I-gel laryngeal mask general anesthesia combined with tracheal catheter can more effectively maintain the stability of hemodynamics in patients who will have thoracolumbar operation in prone position than the single use of tracheal catheter, reduce the stress response of patients, and improve the quality of recovery after general anesthesia.