Determination of DLT bronchial cuffed end misalignment
dislocation
After the patient was moved from a horizontal to a lateral position, the position of the DLT was checked again using fiberoptic bronchoscopy. Misalignment in patients with a left-sided DLT was identified as failure to completely display the bronchial openings of the left upper and lower lung lobe through the left double-lumen bronchial opening. Misalignment in patients with a right-sided DLT was identified as failure to completely display the middle and lower lung lobe openings through the right double-lumen bronchial opening, as well as failure to display the right upper lung lobe bronchial opening in the lateral aperture. Bronchial cuffed end dislocation and misalignment were determined and recorded and then corrected in a timely manner. The DLT in the patients in group II was fixed with adhesive tape, and the tube cuff pressure was readjusted to 28 mmHg for the tracheal cuff and 25 mmHg for the bronchial cuff in both groups [