Injury to the tracheal carina and bronchial mucosa
congestion, bleeding, swelling
CONGESTION, BLEEDING, BLIND
The patient was returned to a horizontal position at the end of the operation, and the DLT was removed after reaching the extubation standard. After extubation, fiberoptic bronchoscopy was performed again to check for injury to the tracheal carina and bronchial mucosa. Injury was graded as mild (a little mucous membrane with scattered congestion and red swelling), moderate (mucous membrane with obvious congestion, red swelling, or a little oozing blood), or severe (airway mucous membrane with obvious oozing blood or with active bleeding). All of the above involving the use of fiberoptic bronchoscopy to evaluate the position and displacement of DLT and the injury of carina and tracheal mucosa were performed by the same physician with rich experience in the use of fiberoptic bronchoscopy, and the physician was blind to the case grouping.