Ultrasound-guided superior laryngeal nerve block combined with intravenous sufentanil of 0.2μg/kg can effectively inhibit tracheal intubation reaction
In this study, by comparing the heart rate changes of four groups of patients during intubation, we found that the heart rate of patients in group A, C and D at T3 was significantly higher than that at T2,while that of patients in group B at T2 and T3 had no statistical difference. Surprisingly, the changes of heart rate before and after tracheal intubation in group A combined with intravenous 0.4μg/kg sufentanil were more obvious than those in group B combined with intravenous 0.2μg/kg sufentanil. We analyzed the changes of heart rate at the time of entering the room and before intubation (after using sufentanil),and found that there was no significant change in these four groups (We also compared the mean arterial pressure(MAP) of four groups of patients during tracheal intubation. The MAP of four groups of patients at T3 was significantly higher than that at T2(By comprehensively analyzing the fluctuation of heart rate and blood pressure during endotracheal intubation, we found that ultrasound-guided superior laryngeal nerve block combined with intravenous application of 0.2μg/kg sufentanil had obvious advantages over other groups in inhibiting endotracheal intubation response and maintaining hemodynamic stability during endotracheal intubation.