Conclusions
medial branch block of superior laryngeal nerve, airway difficulties
CARDIOVASCULAR DISEASES
Ultrasound-guided medial branch block of superior laryngeal nerve combined with intravenous use of 0.2μg/kg sufentanil during tracheal intubation in general anesthesia surgery has better hemodynamic stability, reduces the need for opioids during intubation. Ultrasound-guided SLNB combined with TFPB can reduce perioperative opioids use, shorten PACU residence time and intestinal first exhaust time of patients.This study did not clarify how the medial branch block of the superior laryngeal nerve can shorten the first postoperative intestinal exhaust time and postoperative hospitalization time, which needs further study. Whether special populations (such as patients with airway difficulties, severe cardiovascular diseases, and elderly patients, etc.) can benefit from this protocol is also worthy further study.