It was reported that the patient underwent a video-assisted thoracoscopic left upper lobectomy procedure on (b)(6) 2016 and suture was used on the branching root of superior pulmonary vein.During the procedure, the superior pulmonary vein was cut off with a stapler, and then the suture was used on the root of the vein.When ligation was performed, the suture was inserted deeply; the knot was placed/shoved deeply though normally the knot would be placed on the tissue surface to avoid contacting other tissues.After the procedure, the patient's bronchial tube was suspected to be perforated.It was also reported no bleeding occurred.The surgeon opined that the shoved knot might have caused the damage to the bronchial tube.The damaged/perforated bronchial tube was found with a bronchoscope on (b)(6) 2016 and the purple substance like the suture was seen from the bronchoscope on (b)(6) 2016.It was reported that the bronchial tube perforation is not closed.The doctor decided to watch and wait because no leak was found.The patient is stable and will get out of the hospital in the near future.Additional information has been requested.
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