• Hung-Te Hsu, Yi-Wei Kuo, Chao-Wei Ma, Miao-Pei Su, Kuang-Yi Tseng, Chin-Ling Li, and Kuang-I Cheng.
• Department of Anesthesiology, Kaohsiung Medical University Chung-Ho Memorial Hospital, No.100, Tzyou 1st Rd., Sanmin Dist., 80756, Kaohsiung City, Taiwan (R.O.C.).
• BMC Anesthesiol. 2022 Aug 15; 22 (1): 260.

BackgroundThe mainstream facilitation of one-lung ventilation is using double-lumen endobronchial tubes. However, it is more difficult to be positioned properly and more likely to cause airway injuries. How to place double-lumen endobronchial tubes rapidly and correctly is important for thoracic anesthesiologists.MethodsOne hundred eight patients with an American Society of Anesthesiologists physical status of I to III were 20 years of age or over, and required one-lung ventilation for thoracic surgery. They were randomly assigned to the conventional technique group (n = 36), the flexible fiberoptic bronchoscopy group (n = 36), or the Trachway® flexible stylet group (n = 36). The primary endpoint was the time needed for intubation. T1, the time from the tip of the blade passing between the patient's lips to identification of the vocal cords; and T2, the time from identification of the vocal cords to the bronchial lumen was in the correct position.ResultsT1 had no significant difference between groups, but T2 was significantly shorter in the Trachway® flexible stylet group (p < 0.0001) and longer in the conventional technique group (p < 0.0001).ConclusionsUsing Trachway® flexible stylet for correct placement of double-lumen endobronchial tubes not only significantly shortened the intubation time, but also reduced incidence of carinal injuries. It is an alternative, and a choice with good safety.Trial RegistrationClinicalTrials.gov Identifier: NCT02364622, 18/02/2015, Retrospectively registered.© 2022. The Author(s).

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