Abstract
BackgroundGeneral anaesthesia for thoracoscopic lung surgery can be performed with the opioid-sparing strategies without intubation and may reduce the risk of glottic injury and enhance recovery after surgery. We therefore tested the primary hypothesis that avoiding intubation reduces glottic injury. MethodsAdults having elective thoracoscopic lung resections were randomised to: (1) intubated group: routine general anaesthesia with a double-lumen tube intubation; or, (2) non-intubated group: a bundle of opioid-sparing strategies, which included paravertebral blocks and total intravenous anaesthesia with minimal remifentanil infusion from 0.05 to 1.0 ng/mL (avoid sufentanil unless the respiratory rate exceeds 25/min or the systolic blood pressure exceeds 30% of the baseline value), no muscle relaxation, and spontaneous ventilation through a laryngeal mask. The primary outcome was glottal injury as determined by transnasal bronchoscopy one hour after removal of the laryngeal mask or double-lumen tube. ResultsTwo hundred seventeen patients were assessed for the primary outcome. Sufentanil use was reduced 96% and remifentanil was reduced 40% in non-intubated opioid-sparing patients. The incidence of glottal injury was 9% (10/109) in the non-intubated vs. 37% (40/108) in the intubated patients (RR: 0.25; 95%CI: 0.13–0.47, P < 0.001). The non-intubated group also had less postoperative sore throat (8% vs. 39%; P < 0.001) and hoarseness (3% vs. 19%; P < 0.001). Postoperative pulmonary complications and lung injury biomarkers did not differ between the groups. Compared to the intubated group, the non-intubated group had less postoperative pain, faster recovery, and improved quality-of-life scores. ConclusionsNon-intubated opioid-sparing strategies for video-assisted lung resections reduce airway injury and promote postoperative recovery. Clinical trial number and registry URLChiCTR1800018198https://www.chictr.org.cn/showproj.aspx?proj=30780
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