Comparison of general data of patients in each group.
GROUP B
Group A, Group B and Group C were all subjected to superior laryngeal nerve block, and the dosage of sufentanil was 0.4μg/kg, 0.2μg/kg and 0 μ g/kg respectively. In group D, there was no superior laryngeal nerve block, and the dosage of sufentanil was 0.4 μ g/kg.BMI: body mass indexASA: American Association of Anesthesiologists.Our study observed cardiovascular response during intubation and the postoperative indicators of patients and found that ultrasound-guided superior laryngeal nerve block binding with 0.2μg/kg sufentanil can reduce intubation response and improve hemodynamic stability, thereby shortening the first postoperative intestinal exhaust time and postoperative hospitalization time.