Urgent thoracotomy for penetrating chest trauma: analysis of 158 patients of a single center.

Background: Penetrating injuries to the chest present a frequent and challenging problem, but the majority of these injuries can be managed non-\operatively. The aim of this study was to describe the incidence of penetrating chest trauma and the ultimate techniques used for operative management, as well as the diagnosis, complications, morbidity and mortality.

Methods: A retrospective 9-year review of patients who underwent an operative procedure following penetrating chest trauma was performed. The mechanism of injury, gender, age, physiological and outcome parameters, including injury severity score (ISS), chest abbreviated injury scale (AIS) score, lung injury scale score, concomitant injuries, time from admission to operating room, transfusion requirement, indications for thoracotomy, intra-operative findings, operative procedures, length of hospital stay (LOS) and rate of mortality were recorded.

Results: A total of 1123 patients who were admitted with penetrating thoracic trauma were investigated. Of these, 158 patients (93 stabbings, 65 gunshots) underwent a thoracotomy within 24 h after the penetrating trauma. There were 146 (92.4%) male and 12 (7.6%) female patients, and their mean age was 25.72 9.33 (range, 15–54) years. The mean LOS was 10.65 8.30 (range, 5–65) days. Patients admitted after a gunshot had a significantly longer LOS than those admitted with a stab wound (gunshot, 13.53 9.92 days; stab wound, 8.76 6.42 days, p < 0.001). Patients who died had a significantly lower systolic blood pressure (SBP) on presentation in the emergency room (42.94 36.702 mm Hg) compared with those who survived (83.96 27.842 mm Hg, p = 0.001). The overall mortality rate was 10.8% (n = 17). Mortality for patients with stab wounds was 8/93 (8.6%) compared with 9/65 (13.8%) for patients with gunshot wounds (p = 0.29). Concomitant abdominal injuries (p = 0.01), diaphragmatic injury (p = 0.01), ISS (p = 0.001), chest AIS score (p < 0.05), ongoing output (p = 0.001), blood transfusion volume (p < 0.01) and SBP (p = 0.001) were associated with mortality.

Conclusion: Penetrating injuries to the chest requiring a thoracotomy are uncommon, and lung-sparing techniques have become the most frequently used procedures for lung injuries. The presence of associated abdominal injuries increased the mortality five-fold. Factors that affected mortality were ISS, chest AIS score, SBP, ongoing chest output, blood transfusion volume, diaphragmatic injury and associated abdominal injury.