Effects of post rib plating tube thoracostomy output on the need for thoracic re-intervention: Does the volume matter?

Background: Surgical stabilization of rib fractures (SSRF) has been demonstrated to improve early clinical outcomes. Tube thoracostomy (TT) is commonly performed with SSRF, however there is a paucity of data regarding when removal of TT following SSRF should occur. This study aimed to compare patients undergoing thoracic reinterventions (reintubation, reinsertion of TT/pigtail, or video-assisted thoracic surgery) to those not following SSRF+TT, hypothesizing increased TT output prior to removal would be associated with thoracic reintervention.

Methods: We performed a single center retrospective (2018-2023) analysis of blunt trauma patients ≥ 18 years-old undergoing SSRF+TT. The primary outcome was thoracic reinterventions. Patients undergoing thoracic reintervention ((+)thoracic reinterventions) after TT removal were compared to those who did not ((-)thoracic reintervention). Secondary outcomes included TT duration and outputs prior to removal.

Results: From 133 blunt trauma patients undergoing SSRF+TT, 23 (17.3 %) required thoracic reinterventions. Both groups were of comparable age. The (+)thoracic reintervention group had an increased injury severity score (median: 29 vs. 17, p = 0.035) and TT duration (median: 4 vs. 3 days, p < 0.001) following SSRF. However, there were no differences in median TT outputs between both cohorts post-SSRF day 1 (165 mL vs. 160 mL, p = 0.88) as well as within 24 h (60 mL vs. 70 mL, p = 0.93) prior to TT removal.

Conclusion: This study demonstrated over 17 % of SSRF+TT patients required a thoracic reintervention. There was no association between thoracic reintervention and the TT output prior to removal. Future studies are needed to confirm these findings, which suggest no absolute threshold for TT output should be utilized regarding when to pull TT following SSRF.