Abstract:Objective: To study the effects of HANS on serum cortisol and blood glucose in patients during intratracheal intubation. Methods: Forty patients, undergoing cholecystectomy, were randomly divided into two groups.One group was combined with HANS (HANS group), while the other group was without it (non-HANS group). The same drugs were infused intravenously in both groups before intratracheal intubation. During intratracheal intubation, changes of serum cortisol, blood glucose, blood pressure and heart rate were observed. Results: In the HANS group, serum cortisol level was decreased significantly at post-intubation, blood glucose remained constant during intratracheal intubation. In the non-HANS group, serum cortisol and blood glucose levels were increased significantly at post-intubation. Blood pressure of both groups were decreased after drugs induction. At post-intubation, blood pressure was increased to basic level in the HANS group. In contrast, blood pressure was increased more than basic level in the non-HANS group. Heart rate of HANS group remained constant, while heart rate of non-HANS group was increased at post-intubation. Conclusion: HANS used for intratracheal intubation inhibited effectively the stress response including increases of serum cortisol, blood glucose, blood pressure and heart rate.