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Background The femoral artery is commonly injured following lower extremity trauma. If not identified early and addressed properly, it can lead to compartment syndrome (CS) and limb amputation. The aim of this study is to examine traumatic femoral artery injuries and identify risk factors for the development of lower extremity CS. Methods Adult (≥18 years) patients who presented with traumatic femoral artery injuries were identified in the Trauma Quality Improvement Program 2017. Patients were stratified into two groups, those with evidence of lower extremity compartment syndrome (CS) and those without CS (NCS), for comparison. Multivariate regression analysis was performed. Results A total of 1,297 adult trauma patients with femoral artery injury were identified. Mean age was 36 ± 15 y, 86% were male, and 68% had penetrating injuries. Median extremity abbreviated injury scale (AIS) was 3 [3,4], and median injury severity score (ISS) was 27 [22-41]. 68 (5.2%) patients were diagnosed with CS of the lower extremity, 66 (97.1%) of those patients underwent fasciotomy and one (1.5%) patient eventually had an amputation. On multivariate regression analysis, concomitant femoral vein, femoral nerve, and popliteal artery injuries and early need for blood transfusions were independent risk factors for the development of CS (OR 3.1, 3.8, 4.3, and 2.5 respectively). Conclusions CS following traumatic femoral artery injury is a relatively common finding. Physicians must maintain a high index of suspicion and should consider prophylactic fasciotomy in the setting of combined femoral vein and nerve injuries, combined popliteal artery injury, and multiple blood transfusions.

Firearm-related injuries (FRI) are an important public health crisis in the US. There is relatively less city level data examining the injury-related trends in Tucson, Arizona. Our study aims to examine FRI, in Southern Arizona's only Level I trauma center.We conducted a (2014-2019) review of our Level-I trauma center registry. We selected all patients who were evaluated for a FRI. We collected patient and center related variables. Our outcomes were the trends of FRI, injury-related characteristics, and mortality. Cochran-Armitage trend analysis was performed.A total of 1012 FRI patients were identified. The majority of patients were teenagers (32%) and young adults (30%), and 88% were male. Greater than 80% of patients belonged to the low/low-middle socioeconomic class, and 18.5% completed college. The most common firearm utilized was the handgun (45%). The prevalence of FRI increased significantly (2014:15%; 2019:21%; P0.01). The most common injury intention was assault (75%). The median ISS was 17(9-25) with most injuries sustained to the extremities (23%). Also, 25% required emergent operative intervention. There is a significant rise in the number of severely injured patients (ISS≥25) (2014:12.1%, 2019:20%; P0.01), self-inflicted injuries (2014:10%, 2019:17%; P0.01), unintentional injuries (2014:6%, 2019:12%; P0.01), and mortality (2014:11%; 2019:19%; P0.01). A high prevalence of substance abuse was noted (73% alcohol, 64% drugs).The prevalence of FRI at our center has been rising over the past decade with a shift towards more severe injuries and higher mortality rates. Addressing these alarming changes requires targeted interventions on multiple frontiers.

Introduction Changes in the shock index (ΔSI) can be a predictive tool but is not established among pediatric trauma patients. The aim of our study was to assess the impact of ΔSI on mortality in pediatric trauma patients. Methods We performed a 2017 analysis of all pediatric trauma patients (age 0-16 y) from the ACS-TQIP. SI was defined as heart rate(HR)/systolic blood pressure(SBP). We abstracted the SI in the field (EMS), SI in the emergency department (ED) and calculated the change in SI (ΔSI = ED SI–EMS SI). Patients were divided into four age groups: 0-3 y, 4-6 y, 7-12 y, and 13-16 y and substratified into two groups based on the value of the age-group-specific ΔSI cutoff obtained with receiver operating characteristic ROC analysis; +ΔSI and –ΔSI. Our outcome measure was mortality. Multivariable logistic and Cox regression analyses were performed. Results We included 31,490 patients. Mean age was 10.6 ± 4.6 y, and 65.8% were male. The overall mortality rate was 1.4%. In the age group 0-3 y the cutoff point for ΔSI was 0.29 with an area under the curve (AUC) 0.70 [0.62-0.79], ΔSI cutoff 4-6 y was 0.41 AUC 0.81 [0.70-0.92], ΔSI cutoff 7-12 y was 0.05 AUC 0.83 [0.76-0.90], and ΔSI cutoff 13-16 y was 0.13 AUC 0.75 [0.69-0.81]. On the Cox regression analysis, +ΔSI was independently associated with increased in-hospital mortality and 24-h mortality (P ≤ 0.01). Conclusions Vital signs vary by age group in children, but ΔSI inherently accounts for this variation. ΔSI predicts mortality and may be utilized as a predictor to help guide triage of pediatric trauma patients. Level of Evidence Level III Prognostic.

Background Blood pressure alterations in patients with traumatic brain injury (TBI) have been shown to be associated with increased mortality. However, there is paucity of data describing the optimal emergency department (ED) systolic blood pressure (SBP) target during the initial evaluation. The aim of our study was to assess the association between SBP on presentation and mortality in patients with TBI. Methods We performed a retrospective (2015-2016) review of the American College of Surgeons Trauma Quality Improvement Program database and included all adult (age ≥18y) trauma patients who had TBI on presentation. The outcome measure was in-hospital mortality at different ED-SBP values. A subanalysis by age and TBI severity in accordance with the Glasgow Coma Scale (GCS) was performed (mild (GCS ≥13), moderate (GCS 9-12), and severe (≤8)). Multivariate logistic regression analysis was performed. Results A total of 94,411 adult trauma patients with TBI were included. Mean age was 59 ± 21y, 62% were male, and median GCS was 15 [14-15]. Mean SBP was 147 ± 28 mmHg, and overall mortality was 8.6%. The lowest rate of mortality was noticed at ED SBP between 110 and 149 mmHg, whereas the highest mortality was at admission SBP 190 mmHg. On regression analysis, SBP between 130 and 149 mmHg (odds ratio = 0.92; P = 0.68) was not associated with increased odds of mortality relative to SBP between 110 and 129 mmHg. On subanalysis based on severity of TBI (mild 80.9%, moderate 5.3%, and severe 13.8%), patients with SBP between 110 and 149 mmHg were less likely to die across all TBI groups. Conclusions The optimal ED-SBP range for patients with TBI seems to be age and severity dependent. The optimum range might guide clinicians in developing resuscitation protocols for managing patients with TBI. Level of Evidence Level III Prognostic.

Background With an aging population, the number of patients on antiplatelet medications and traumatic brain injury (TBI) is increasing. Our study aimed to evaluate the role of platelet transfusion on outcomes after traumatic intracranial bleeding (IB) in these patients. Methods We analyzed our prospectively maintained TBI database from 2014 to 2016. We included all isolated TBI patients with an IB, who were on preinjury antiplatelet agents and excluded patients taking anticoagulants. Outcome measures included the progression of IB, neurosurgical intervention, and mortality. Regression analysis was performed. Results A total of 343 patients met the inclusion criteria. Mean age was 58 ± 11 y, 58% were men, and median injury severity score was 15 (10-24). Distribution of antiplatelet agents was as follows: aspirin (60%) and clopidogrel (35%). Overall, 74% patients received platelet transfusion after admission with a median number of two platelet units. After controlling for confounders, patients who received one unit of pooled platelets had no difference in progression of IB (odds ratio [OR]: 0.98, [0.6-1.9], P = 0.41), need for neurosurgical intervention (OR: 1.09, [0.7-2.5], P = 0.53), and mortality (OR: 0.84, [0.6-1.8], P = 0.51). However, patients who received two units of pooled platelets had lower rate of progression of IB (OR: 0.69, [0.4-0.8], P = 0.02), the need for neurosurgical intervention (OR: 0.81, [0.3-0.9], P = 0.03), and mortality (OR: 0.84, [0.5-0.9], P = 0.04). Both groups were compared with those who did not receive platelet transfusion. Conclusions The use of two units of platelet may decrease the risk of IB progression, neurosurgical intervention, and mortality in patients on preinjury antiplatelet agents and TBI. Further studies should focus on developing protocols for platelet transfusion to improve outcomes in these patients. Level of evidence Level III prognostic.

Despite improvements in operative techniques, major abdominal complications (MACs) continue to occur after penetrating abdominal trauma (PAT). This study aimed to evaluate the burden of MAC after PAT.The (2012-2015) National Readmission Database was queried for all adult (age ≥18 y) trauma patients with penetrating injuries who underwent exploratory laparotomy and were readmitted within 6 mo of index hospitalization discharge. Patients were stratified by firearm injuries (FIs) and stab injuries (SIs). Primary outcomes were rates of MAC: intra-abdominal abscesses (IAAs), superficial surgical site infection (SSI), and fascial dehiscence within 6 mo after discharge. Secondary outcomes were both nonabdominal complications and mortality, postdischarge, and 6-mo readmission. Regression analysis was performed.A total of 4473 patients (FI, 2326; SI, 2147) were included in the study; the mean age was 32 ± 14 y, the Injury Severity Score was 19 (15-25), and 23% underwent damage control laparotomy (DCL). The rate of MAC within 6 mo was 22% (IAA 19%, SSI 7%, and fascial dehiscence 4%). Patients with FIs had a higher rate of IAA (27% versus 10%; P 0.01), SSI (11% versus 3%; P 0.01), fascial dehiscence (5% versus 3%; P = 0.03), nonabdominal complications (54% versus 24%; P 0.01), and postdischarge mortality (8% versus 6%; P 0.01) compared with patients with SIs . On regression analysis, DCL (P 0.01), large bowel perforation (P 0.01), biliary-pancreatic injury (P 0.01), hepatic injury (P 0.01), and blood transfusion (P = 0.02) were predictors of MAC.MAC developed in one in five patients after PAT. FIs have a higher potential for hollow viscus injury and peritoneal contamination, and are more predictive of MAC and nonabdominal complications, especially after DCL.Level III Prognostic.

Alcohol use disorder (AUD) has deleterious effects on many organ systems. The aim of our study was to assess the impact of AUD on outcomes in patients with rib fractures. We hypothesized that AUD is associated with increased risk adverse outcomes.We performed a 2013-2014 retrospective analysis of all adult trauma patients diagnosed with rib fractures from the American College of Surgeons-Trauma Quality Improvement Program database. We excluded patients who were acutely intoxicated with alcohol. Patients were stratified into two groups: AUD + and AUD -. A 1:1 ratio propensity score matching for demographics, admission vitals, injury severity, smoking status, operative intervention, and number of rib fractures was performed. Outcome measures were in-hospital complications, mortality, hospital and intensive care unit length of stay, and ventilator days.We matched 19,638 patients (AUD +:9,819, AUD -:9819). Mean age was 53 ± 22y, and median injury severity score was 15[10-20]. Matched groups were similar in age (P = 0.18), smoking status (P = 0.82), injury severity score (P = 0.28), chest Abbreviated Injury Scale (P = 0.24), and number of rib fractures (2[1-4] versus 2[1-4], P = 0.86). Alcoholic patients had higher rates of pneumonia (18.1% versus 9.2%, P 0.01), unplanned intubation (18.5% versus 9.7, P 0.001), sepsis (10.8% versus 6.3%, P 0.001), acute respiratory distress syndrome (12.2% versus 7.4%, P 0.001), and mortality (8.0 versus 5.7%, P 0.001). Patients with AUD spent more days in the hospital and intensive care unit . There was no difference in ventilator days between the two groups.Patients with AUD and rib fractures had higher rates of adverse events than patients without AUD. Early identification of patients with rib fractures with AUD may allow better resource allocation and help improve outcomes.Level III prognostic.

Surgical exploration for gunshot wounds to the abdomen has been a surgical standard for the greater part of the past century. Recently, nonoperative management (NOM) has been deemed as a safe option for abdominal gunshot wounds (AGWs). The aim of this analysis was to review the utilization of NOM and mortality after AGWs.We performed a 2010-2014 retrospective analysis of the American College of Surgeons Trauma Quality and Improvement Program. We included all adult (aged 18 and older) patients with AGWs. NOM was defined as nonsurgical intervention within the first 6 h. Outcome measures were trends of utilization of NOM and mortality. Cochrane-Armitage trend analysis was performed.A total of 808,272 trauma patients were identified, and 16,866 patients with AGWs were included. During the study period, the incidence of AGWs increased, whereas the proportion of bowel injury (P = 0.75) and solid organ injury (P = 0.44) did not change. The NOM rate of AGW increased (2010: 19.5% versus 2014: 27%, P 0.001). This was accompanied by a decrease in mortality rate (11% versus 9.4%, P = 0.01). Likewise, there was an increase in the use of angiography (7.5% versus 27%, P 0.001) and laparoscopy (0.9% versus 2.6%, P 0.001). Overall, 9.8% of the patients had failed NOM. There was no difference in mortality in patients who were managed successfully or failed NOM (5% versus 4.6%, P = 0.45).NOM of AGW is more prevalent and is associated with a decrease in mortality rate. Selective NOM may be practiced safely after AGWs.

Background Thromboprophylaxis in patients with spinal trauma is often delayed due to the risk of bleeding and expansion of the intraspinal hematoma (ISH). Our study aimed to assess the safety of early initiation of thromboprophylaxis in patients with operative spinal trauma (OST). Methods We performed a 2014-2017 retrospective analysis of our level I trauma registry and included all adult patients with isolated OST who received low-molecular-weight heparin (LMWH). Patients were stratified into early (≤48 h) and late (>48 h) initiation of LMWH groups. Outcomes were a decline in hemoglobin level, packed red blood cell transfusion, and progression of ISH. We performed multivariable logistic regression. Results We identified a total of 526 patients (early: 332, late: 194). Mean age was 46 ± 22y, and the median spine abbreviated injury scale was 3 [2-4]. After thromboprophylaxis, 1.5% (8) of the patients had progression of ISH and 1% (5) underwent surgical decompression of the spinal canal. There was no difference between the two groups regarding the rate of postprophylaxis ISH progression (1.5% versus 1.6%, P = 0.11) or surgical decompression (0.9% versus 1.1%, P = 0.19). Patients who received LMWH within 48 hrs had a lower incidence of clinically significant deep vein thrombosis (2.4% versus 6.8%, P = 0.02), but no difference in pulmonary embolism (0.6% versus 1.6%, P = 0.33) or mortality (1.2% versus 1.5%, P = 0.41). On regression analysis, there was no difference regarding decline in hemoglobin levels (β = 0.079, [−0.253 to 1.025]; P = 0.23) or number of packed red blood cell units transfused (β = −0.011, [−0.298 to 0.471]; P = 0.35). Conclusions Thromboprophylaxis with LMWH within the first 48 h in patients with OST is safe and efficacious. Prospective studies are needed to further validate their risk-benefit ratio. Level of evidence Level III therapeutic.