• Katherine M McKendy, Lawrence F Lee, Kerianne Boulva, Dan L Deckelbaum, David S Mulder, Tarek S Razek, and Jeremy R Grushka.
• Division of General Surgery, Department of Surgery, McGill University Health Centre, Montreal, Quebec, Canada.
• J. Surg. Res. 2017 Jun 15; 214: 117-123.

BackgroundThe optimal method of pain control for patients with traumatic rib fractures is unknown. The aim of this study was to determine the effect of epidural analgesia on respiratory complications and in-hospital mortality in patients with rib fractures.MethodsAdult patients at a level I trauma center with ≥1 rib fracture from blunt trauma were included (2004-2013). Those with a blunt-penetrating mechanism, traumatic brain injury, or underwent a laparotomy or thoracotomy were excluded. Patients who were treated with epidural analgesia (EPI) were compared with those were not treated with epidural analgesia (NEPI) using coarsened exact matching. Primary outcomes were respiratory complications (pneumonia, deep vein thrombosis/pulmonary embolus, and respiratory failure) and 30-d in-hospital mortality. Secondary outcomes were total hospital and intensive care unit length of stay, and duration of ventilator support.ResultsAbout 1360 patients (EPI: 329 and NEPI: 1031) met inclusion criteria (mean age: 54.2 y; standard deviation [SD]: 19.7; 68% male). The mean number of rib fractures was 4.8 (SD: 3.3; 21% bilateral) with a high total burden of injury (mean Injury Severity Score: 19.9 [SD: 8.9]). The overall incidence of respiratory complications was 13% and mortality was 4%. After matching, 204 EPI patients were compared with 204 NEPI patients, with no differences in baseline characteristics. EPI patients experienced more respiratory complications (19% versus 10%, P = 0.009), but no differences in 30-d mortality (5% versus 2%, P = 0.159), duration of mechanical ventilation (EPI: 148 h [SD: 167] versus NEPI: 117 h [SD: 187], P = 0.434), or duration of intensive care unit length of stay (6.5 d [SD: 7.6] versus 5.8 d [SD: 9.1], P = 0.626). Hospital stay was higher in the EPI group (16.6 d [SD: 19.6] vs 12.7 d [SD: 15.2], P = 0.026).ConclusionsEpidural analgesia is associated with increased respiratory complications without providing mortality benefit after traumatic rib fractures. Alternate analgesic strategies should be investigated to treat these severely injured patients.Copyright © 2017 Elsevier Inc. All rights reserved.

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