To investigate the efficacy and safety of sugammadex for antagonistic neuromuscular block in patients with radical resection of lung cancer under thoracoscope. One hundred patients undergoing radical resection of lung cancer under thoracoscope in Affiliated Cancer Hospital of Zhengzhou University from March to September in 2019, were randomly divided into control group (group C) and sugammadex group (group S). All patients were anaesthetized (induced and maintained) with intravenous target-controlled infusion of propofol and remifentanil, and intermittent intravenous injection of the neuromuscular block of rocuronium. During the operation, the bispectral index (BIS) was used to monitor the depth of anesthesia, and the neuromuscular block was assessed with TOF. Single-lung mechanical ventilation and double-lumen endotracheal intubation were carried out, and patient-controlled analgesia after operation were enforced. Patients in group C received neostigmine (2 mg) combined with atropine (0.5-1.0 mg) after thoracic closure, while patients in group S received sugammadex (2 mg/kg) at TOF count (≥2) after thoracic closure, and then double-lumen endotracheal tubes were extubated according to extubation indications. At these time points: T(0) (immediate before anesthesia induction), T(1) (immediate before tracheal intubation), T(2) (immediately after thoracic closure), T(3) (1 h after operation), T(4) (6 h after operation), T(5) (24 h after operation), T(6)(48 h after operation), the heart rate(HR) and mean arterial pressure (MAP) were recorded, QT interval (V3 ECG) were measured and calculated, indicators of liver function [alanine transaminase (ALT), aspartate transaminase(AST)], renal function [blood urea nitrogen (BUN), creatinine (Cre)] and clotting function [thrombin time (TT), prothrombin time (PT), activated partial thromboplastin time (APTT) and fibrinogen (FIB)] were detected. The duration of operation, postoperative conditions within 48 hours after operation(the time of tracheal tube extubation, respiratory suppression/dysfunction, allergy, nausea and vomiting, itching of skin, abnormal sensation), pathological types and the postoperative hospital stay were recorded. There were no significant differences of the age, sex ratio, body mass index (BMI), American Society of Anesthesiologists (ASA) grading ratio, duration of operation, pathological types and the postoperative hospital stay, HR, MAP and QT interval between two groups (all 0.05). There were no remarkable differences of the levels of serum histamine, ALT, AST, BUN, Cre, TT, PT, APTT and FIB before and after administration of neuromuscular blockade antagonists (neostigmine or Sugammadex) in the same group patients (all 0.05), also no significant differences between group C and group S at the same time points (all 0.05). Average time of tracheal tube extubation in group S [(3.7±1.3) min] was sharply shorter than that in group C [(14.5±4.4) min, 2.266, 0.05)]. There were no patients with allergy, skin itching, sensory abnormality in these two groups. There were no significant difference of the incidence of postoperative nausea and vomiting between these two groups. There were 5 patients with respiratory depression in group C and no respiratory depression patient in group S, the difference was statistically significant between these two groups (χ(2)=5.263, 0.05). Sugammadex is effective for antagonizing the neuromuscular blockade of rocuronium in patients with radical resection of lung cancer under thoracoscope, and can shorten the time of tracheal tube extubation after surgery.
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