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Background Prehospital administration of tranexamic acid (TXA) to injured patients is increasing worldwide. However, optimal TXA dose and need of a second infusion on hospital arrival remain undetermined. We investigated the efficacy and safety of the second in-hospital dose of TXA in injured patients receiving 1 g of TXA in the prehospital setting. We hypothesized that a second in-hospital dose of TXA improves survival of trauma patients. Methods A prospective, double-blind, placebo-controlled randomized, clinical trial included adult trauma patients receiving 1 g of TXA in the prehospital settings. Patients were then blindly randomized to Group I (second 1-g TXA) and Group II (placebo) on hospital arrival. The primary outcome was 24-h (early) and 28-day (late) mortality. Secondary outcomes were thromboembolic events, blood transfusions, hospital length of stay (HLOS) and organs failure (MOF). Results A total of 220 patients were enrolled, 110 in each group. The TXA and placebo groups had a similar early [OR 1.000 (0.062–16.192); p = 0.47] and late mortality [OR 0.476 (95% CI 0.157–1.442), p = 0.18].The cause of death (n = 15) was traumatic brain injury (TBI) in 12 patients and MOF in 3 patients. The need for blood transfusions in the first 24 h, number of transfused blood units, HLOS, thromboembolic events and multiorgan failure were comparable in the TXA and placebo groups. In seriously injured patients (injury severity score > 24), the MTP activation was higher in the placebo group (31.3% vs 11.10%, p = 0.13), whereas pulmonary embolism (6.9% vs 2.9%, p = 0.44) and late mortality (27.6% vs 14.3%, p = 0.17) were higher in the TXA group but did not reach statistical significance. Conclusion The second TXA dose did not change the mortality rate, need for blood transfusion, thromboembolic complications, organ failure and HLOS compared to a single prehospital dose and thus its routine administration should be revisited in larger and multicenter studies. Trial registration ClinicalTrials.gov Identifier: NCT03846973.

Background: Hyperglycemia following trauma could be a response to stress. The constellation of the initial hyperglycemia, proinflammatory cytokines and severity of injury among trauma patients is understudied. We aimed to evaluate the patterns and effects of on-admission hyperglycemia and inflammatory response in a level 1 trauma center admissions. Methods: A prospective, observational study was conducted for adult trauma patients who were admitted and tested for on-admission blood glucose, hemoglobin A1c, interleukin (IL)-6 ,Il-18 and hs-CRP. Patients were categorized into 4 groups (non-diabetic normoglycemic, diabetic normoglycemic, diabetic hyperglycemic (DH) and stress-induced hyperglycemic (SIH)). The inflammatory markers were measured on 3 time points (admission, 24 h, and 48 h). Pearson’s correlation test and logistic regression analysis were performed. We hypothesized that higher initial readings of blood glucose and cytokines are associated with severe injuries and worse in-hospital outcomes in trauma patients.Results: During the study period, 250 adult trauma patients were enrolled. Almost 13% of patients presented with hyperglycemia (SIH&DH); of whom 50% had SIH. Compared to the other 3 groups; SIH patients were younger, had significantly higher ISS, higher IL-6 readings, prolonged hospital length of stay and higher mortality. The SIH group had lower Revised Trauma Score (p=0.005), lower Trauma Injury Severity Score (p=0.01) and lower GCS (p=0.001). IL-18 and hs-CRP were comparable among the study groups. Compared to the normoglycemia groups, patients with hyperglycemia had elevated high- sensitive troponin T (p=0.001) and required more blood transfusion (p=0.03). Patients with hyperglycemia had 3-times higher in-hospital mortality than the normoglycemia groups (p=0.02). A significant correlation was identified between initial blood glucose and serum lactate, IL-6, ISS and hospital length of stay. IL-6 correlated well with ISS (r=0.40, p=0.001). On- admission blood glucose had age-sex-GCS adjusted odd ratio 1.20(95% CI 1.06-1.33, p=0.003) for severe injury (ISS≥16).Conclusions: On-admission hyperglycemia is associated with a significant severer injury than normoglycemia patients. Initial blood glucose correlates with serum IL-6 which indicates a potential role of the systemic inflammatory response in the disease pathogenesis among the injured patients. On-admission glucose level could be a useful marker of injury severity, triage and risk assessment in trauma patients.This study was registered at the ClinicalTrials.gov (Identifier: NCT02999386), retrospectively Registered on December 21, 2016 https://clinicaltrials.gov/ct2/show/NCT02999386.

Highlights • Transpelvic impalement injury is a rare serious mechanical injury. • The impaling object should be left in situ until the initiation of management at tertiary trauma center. • Careful planning for removal of impaling object is crucial to minimize blood loss and preserve the involved organ function. • Time is important when evaluating and resuscitating such patients. • Treatment needs a multidisciplinary team with coordinated approach and early imaging studies., Introduction Impalement injury is a rare type of mechanical injury following forceful insertion of projecting object into the body. Careful planning for removal of the impaling object is essential to decrease the blood loss and preserve the function of the injured organ. Presentation of case A 27 year-old male fell from 4 m height over a U shaped projecting up metallic bar. The bar penetrated the left side of the pelvis and traversed through the left iliac bone causing a comminuted fracture in the supra-acetabular region extending to the left psoas muscle, injuring the viscera and causing fracture of the right femur. Exploratory laparotomy was performed and the metallic bar was pulled out from the sigmoid colon through the inlet of the injury. Intramedullary nailing was performed for femur fracture. The patient developed infection (Methicillin-sensitive Staphylococcus aureus and Escherichia coli) during the post-operative course that was successfully managed with antibiotic therapy. Finally the patient was sent home after a week in a good health condition. Discussion Two surgical teams worked in sequence to fix the injuries starting with the trauma team followed by the orthopedic surgeons. Conclusion Impalement injury is a serious injury that needs a multidisciplinary team with a coordinated approach to achieve a favorable outcome.

Management of liver injury is challenging particularly for the advanced grades. Increased utility of nonoperative management strategies increases the risk of developing massive liver necrosis (MLN). We reported a case of a 19-year-old male who presented with a history of motor vehicle crash. Abdominal computerized tomography (CT) scan revealed large liver laceration (Grade 4) with blush and moderate free hemoperitoneum in 3 quadrants. Patient was managed nonoperatively by angioembolization. Two anomalies in hepatic arteries origin were reported and both vessels were selectively cannulated and bilateral gel foam embolization was achieved successfully. The patient developed MLN which was successfully treated conservatively. The follow-up CT showed progressive resolution of necrotic areas with fluid replacement and showed remarkable regeneration of liver tissues. We assume that patients with high-grade liver injuries could be managed successfully with a carefully designed protocol. Special attention should be given to the potential major associated complications. A tailored multidisciplinary approach to manage the subsequent complications would represent the best recommended strategy for favorable outcomes.

BACKGROUND: Workplace-related injuries carry a significant health care challenge. The state of Qatar is developing rapidly, with much construction and an expanding industrial work force. This study aimed to assess the incidence and social impact of work-related injuries requiring hospitalization caused by falling objects at the construction sites. METHODS: We performed a prospective study for all admissions, which resulted from falling objects between January 2008 and June 2010 at the only trauma center in the state of Qatar. Data were analyzed, and outcomes were described (mortality, length of hospital stay, and safety measures). RESULTS: Of the total injured patients (N = 4,302) admitted between January 2008 and June 2010, 185 (4%) had injuries caused purely by falling objects. Patients' mean age was 29 years, and 97% of the patients were men. All injuries occurred at construction sites. Most patients (86%) were brought by ambulance, and the reminder was brought by private vehicles. After initial evaluation and resuscitation, 120 patients (65%) were found to have a single-system injury, and 65 (35%) had multisystem injury. Operative interventions were required in 50% of the patients. Mean length of hospital stay varied from 6.5 days for single-system injuries to 19 days for multisystem injuries. Safety devices were used in 32 patients (17.3%). All of the 16 mortality cases (8.6%) were reported in multiple injuries. CONCLUSION: Traumatic injury caused by falling object represents a significant problem in a rapidly developing country. Many of these injuries could be prevented by following established safety guidelines. LEVEL OF EVIDENCE: Epidemiologic study, level III. Language: en

Background: Serum troponin T (TnT) is a common marker of myocardial injury. However, its implication in the absence of clinical evidence of cardiac reason is not well established. Aims: The aim of this study was to identify the implications of positive TnT in traumatic chest injury (TCI) patients regardless of the cardiac involvement. Materials and Methods: We conducted a retrospective analysis of all TCI patients admitted to level 1 trauma center between 2008 and 2011. Patients who underwent TnT testing were divided into two groups: Group 1 (positive TnT) and Group 2 (negative TnT). The two groups were analyzed and compared, and multivariate regression analyses were performed to identify predictors of TnT positivity and mortality. Results: Out of 993 blunt TCI patients, 19.3% had positive TnT (Group 1). On comparison to Group 2, patients in Group 1 were 5 years younger and more likely to have head, cardiac, hepatic, splenic, and pelvic injuries, in addition to lung contusion. Positive TnT was associated with higher Injury Severity Score (ISS) (P = 0.001), higher chest Abbreviated Injury Score (AIS) (P = 0.001), and longer hospital stay (P = 0.03). In addition, Group 1 patients were more likely to undergo chest tube insertion, exploratory laparotomy, mechanical ventilation, and tracheostomy. Twenty patients had cardiac involvement, and of them 14 had positive TnT. Among 973 patients who showed no evidence of cardiac involvement, 178 had positive TnT (18.3%). There were 104 deaths (60% in Group 1). On multivariate regression analysis, the predictors of hospital mortality were positive TnT, head injury, and high ISS, whereas, the predictors of TnT positivity were cardiac, hepatic, and pelvic injuries; higher ISS; and age. Conclusions: Positive TnT in blunt TCI patients is a common challenge, particularly in polytrauma cases. Patients with positive TnT tend to have the worst outcome even in the absence of clinical evidence of acute cardiac involvement. Positive TnT is also a reflection of the severity of chest or extrathoracic injuries; however, further prospective studies are warranted.