Evaluating the safety of intraprocedural chest tube removal during medical thoracoscopy

Background: Medical Thoracoscopy (MT) is a diagnostic procedure during which after accessing the pleural space the patient's negative-pressure inspiratory efforts draw atmospheric air into the pleural cavity, which creates a space to work in. At the end of the procedure this air must be evacuated via a chest tube, which is typically removed in the post-anesthesia care unit (PACU). We hypothesized that its removal intra-operatively is safe and may lead to lesser post-operative pain in comparison to its removal in the PACU. Methods: A retrospective review was conducted of all the MT with intraprocedural chest tube removal done between 2019 to 2023 in adult patients in a single center in New York, NY by interventional pulmonology. Results: A total of 100 MT cases were identified in which the chest tube was removed intra-operatively. Seventyseven percent of cases were performed as outpatient and all these patients were discharged on the same day. Post procedure ex-vacuo pneumothorax was present in 42% of cases. Sixty-five percent of cases had some postprocedure subcutaneous emphysema, none reported any complaint of this being painful, and no intervention was needed to relieve the air. Seventy-three percent required no additional analgesia in PACU. Of the 27% that required any form of analgesia, 59% required no additional analgesia beyond the first 24 h. Conclusions: Intraprocedural CT removal for MT is safe and may decrease utilization of additional analgesia post procedure. Further prospective studies are necessary to validate these conclusions.