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Background  The high risk of cross-infection during tracheal intubation has caused excessive occupational anxiety for anaesthesiologists amid the novel coronavirus disease 2019 (COVID-19) pandemic. Currently, there is no effective way to attenuate their anxiety in clinical practice. We found that anaesthesiologist with better protective equipment might experience decreased levels of anxiety during intubation.    Methods  In this study, 60 patients who underwent intubation and extubation in the operating room were enrolled, and then randomized 1:1 to either wear protective sleeves (protective sleeve group) or not (control group). Visual analogue scale (VAS) was used to measure the anxiety level of anaesthesiologists during intubation. The respiratory droplets of patients on the sleeve, and the anaesthesiologists’ perception including the patient’s oral malodour, exertion, satisfaction degree, waist discomfort and shoulder discomfort were recorded. The patients’ anxiety, oppressed feelings and hypoxia and postoperative complications were all measured and recorded.    Results  Compared with the control group, the anaesthesiologists in protective sleeve group achieved lower anxiety scores and better satisfaction degrees during the process of intubation and extubation (all  P  < 0.05). Respiratory droplets were observed only on the inner side, but not the external side, of the protective sleeves ( P  < 0.001). The incidence of the anaesthesiologists’ perception of patients’ oral malodour was significantly lower in the protective sleeve group ( P  = 0.02) and no patients developed hypoxemia or intubation-related complications in the protective sleeve group.    Conclusion  Using protective devices for intubation might eliminate droplet transmission from patients to anaesthesiologists, while also decreasing their anxiety in a controlled operating room environment.    Trial registration  Chinese Clinical Trial. no.  ChiCTR2000030705 . Registry at  www.chictr.org.cn  on 10/03/2020.    Supplementary Information  The online version contains supplementary material available at 10.1186/s12871-021-01467-7.

Application of a protective sleeve is associated with decreased occupational anxiety during endotracheal intubation: a randomized controlled trial