Abstract:Objective To compare the inflatable-free laryngeal mask and endotracheal intubation for endo-bronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) under general anesthesia to hemodynamics, peak airway pressure, anesthesia recovery time and perioperative adverse reactions.Methods 64 patients with EBUS-TBNA under general anesthesia were randomly divided into the inflatable-free laryngeal mask group (Group L, n = 32) and the endotracheal intubation group (Group T, n = 32). Then observe the hemodynamic changes of patients before anesthesia induction (T0), after anesthesia induction before intubation (T1), immediately after insertion of the inflatable-free laryngeal mask/tracheal tube (T2), immediately after ultrasound bronchoscopy insertion (T3), immediately after needle aspiration (T4), immediately after extubation (T5), and 10 min after extubation (T6); Then record the peak airway pressure after inserting the inflatable-free laryngeal mask/tracheal tube (P1), after inserting the bronchoscope (P2), and after extraction of the bronchoscope (P3); record the breathing recovery time, extubation time, total dose of opioid and cisatracurium and perioperative period adverse reactions in two groups.Results Systolic pressure (SBP), diastolic pressure (DBP) and heart rate (HR) at T2 and T5 in group T were higher than those in group L (P < 0.05); The peak airway pressure at P2 in the group T was higher than that in group L (P < 0.05); The breathing recovery time and extubation time in group L were shorter than those in group T (P < 0.05); The total dose of opioid in group T was higher than that in group L (P < 0.05); The incidence of the agitation in extubation period in group T was higher than that in group L (P < 0.05).Conclusion The inflatable-free laryngeal mask airway under general anesthesia is superior to endotracheal intubation in EBUS-TBNA which is easy to keep stable hemodynamics, and shorten the recovery time of anesthesia. It is a safe and feasible anesthesia management method in perioperative period.